Hello Team,

I have configured the relay on the serverAIX7.3 but the email not received on target emails. also we have added relay servers entry in the /etc/hosts files and restarted the sendmail service but seem the error came. 

bash-5.2# cat /etc/mail/sendmail.cf |grep -i DS
# @(#)24        1.78  src/bos/usr/sbin/sendmail/sendmail.cf, cmdsend, bos720 6/6/12 04:39:10
# @(#)21        1.3  src/bos/usr/sbin/sendmail/cf/cf/sendmail.cf, cmdsend, bos73B, b2022_21A3 4/28/22 08:51:06
# COMPONENT_NAME: CMDSEND sendmail.cf
DSsmtp-out.dnaip.fi

when we checked the files under the path /var/spool/mqueue which generated after sending email from the server. wondering that after some time, we observed that same files we can see error like MDeferred: Connection timed out with mx.dnaip.fi

bash-5.2# oslevel -s
7300-03-01-2520
bash-5.2#

could you please help us what needs to check to correct this one.

Hello Team,

I have configured the relay on the serverAIX7.3 but the email not received on target emails. also we have added relay servers entry in the /etc/hosts files and restarted the sendmail service but seem the error came. 

bash-5.2# cat /etc/mail/sendmail.cf |grep -i DS
# @(#)24        1.78  src/bos/usr/sbin/sendmail/sendmail.cf, cmdsend, bos720 6/6/12 04:39:10
# @(#)21        1.3  src/bos/usr/sbin/sendmail/cf/cf/sendmail.cf, cmdsend, bos73B, b2022_21A3 4/28/22 08:51:06
# COMPONENT_NAME: CMDSEND sendmail.cf
DSsmtp-out.dnaip.fi

when we checked the files under the path /var/spool/mqueue which generated after sending email from the server. wondering that after some time, we observed that same files we can see error like MDeferred: Connection timed out with mx.dnaip.fi

bash-5.2# oslevel -s
7300-03-01-2520
bash-5.2#

could you please help us what needs to check to correct this one.

Hello Team,

I have configured the relay on the serverAIX7.3 but the email not received on target emails. also we have added relay servers entry in the /etc/hosts files and restarted the sendmail service but seem the error came. 

bash-5.2# cat /etc/mail/sendmail.cf |grep -i DS
# @(#)24        1.78  src/bos/usr/sbin/sendmail/sendmail.cf, cmdsend, bos720 6/6/12 04:39:10
# @(#)21        1.3  src/bos/usr/sbin/sendmail/cf/cf/sendmail.cf, cmdsend, bos73B, b2022_21A3 4/28/22 08:51:06
# COMPONENT_NAME: CMDSEND sendmail.cf
DSsmtp-out.dnaip.fi

when we checked the files under the path /var/spool/mqueue which generated after sending email from the server. wondering that after some time, we observed that same files we can see error like MDeferred: Connection timed out with mx.dnaip.fi

bash-5.2# oslevel -s
7300-03-01-2520
bash-5.2#

could you please help us what needs to check to correct this one.

Have you set the correct mail server in /etc/mail/submit.cf (DS)?

Hello Team,

I have configured the relay on the serverAIX7.3 but the email not received on target emails. also we have added relay servers entry in the /etc/hosts files and restarted the sendmail service but seem the error came. 

bash-5.2# cat /etc/mail/sendmail.cf |grep -i DS
# @(#)24        1.78  src/bos/usr/sbin/sendmail/sendmail.cf, cmdsend, bos720 6/6/12 04:39:10
# @(#)21        1.3  src/bos/usr/sbin/sendmail/cf/cf/sendmail.cf, cmdsend, bos73B, b2022_21A3 4/28/22 08:51:06
# COMPONENT_NAME: CMDSEND sendmail.cf
DSsmtp-out.dnaip.fi

when we checked the files under the path /var/spool/mqueue which generated after sending email from the server. wondering that after some time, we observed that same files we can see error like MDeferred: Connection timed out with mx.dnaip.fi

bash-5.2# oslevel -s
7300-03-01-2520
bash-5.2#

could you please help us what needs to check to correct this one.

Hello 

I have added relay under the /etc/mail/sendmail.cf file 

DS****

and restarted the sendmail service. when we check log file under the path /var/spool/mqueue and found no error in that file. 

but after some time if we cat same file we are getting error "MDeferred: Connection timed out with mx.abc.fi"

could you please suggest on this why its happening

Have you set the correct mail server in /etc/mail/submit.cf (DS)?

Hello Team,

I have configured the relay on the serverAIX7.3 but the email not received on target emails. also we have added relay servers entry in the /etc/hosts files and restarted the sendmail service but seem the error came. 

bash-5.2# cat /etc/mail/sendmail.cf |grep -i DS
# @(#)24        1.78  src/bos/usr/sbin/sendmail/sendmail.cf, cmdsend, bos720 6/6/12 04:39:10
# @(#)21        1.3  src/bos/usr/sbin/sendmail/cf/cf/sendmail.cf, cmdsend, bos73B, b2022_21A3 4/28/22 08:51:06
# COMPONENT_NAME: CMDSEND sendmail.cf
DSsmtp-out.dnaip.fi

when we checked the files under the path /var/spool/mqueue which generated after sending email from the server. wondering that after some time, we observed that same files we can see error like MDeferred: Connection timed out with mx.dnaip.fi

bash-5.2# oslevel -s
7300-03-01-2520
bash-5.2#

could you please help us what needs to check to correct this one.

Before trying to debug sendmail issues, verify that your LPAR can connect to mx.abc.fi on port 25.

Hello 

I have added relay under the /etc/mail/sendmail.cf file 

DS****

and restarted the sendmail service. when we check log file under the path /var/spool/mqueue and found no error in that file. 

but after some time if we cat same file we are getting error "MDeferred: Connection timed out with mx.abc.fi"

could you please suggest on this why its happening

Have you set the correct mail server in /etc/mail/submit.cf (DS)?

Hello Team,

I have configured the relay on the serverAIX7.3 but the email not received on target emails. also we have added relay servers entry in the /etc/hosts files and restarted the sendmail service but seem the error came. 

bash-5.2# cat /etc/mail/sendmail.cf |grep -i DS
# @(#)24        1.78  src/bos/usr/sbin/sendmail/sendmail.cf, cmdsend, bos720 6/6/12 04:39:10
# @(#)21        1.3  src/bos/usr/sbin/sendmail/cf/cf/sendmail.cf, cmdsend, bos73B, b2022_21A3 4/28/22 08:51:06
# COMPONENT_NAME: CMDSEND sendmail.cf
DSsmtp-out.dnaip.fi

when we checked the files under the path /var/spool/mqueue which generated after sending email from the server. wondering that after some time, we observed that same files we can see error like MDeferred: Connection timed out with mx.dnaip.fi

bash-5.2# oslevel -s
7300-03-01-2520
bash-5.2#

could you please help us what needs to check to correct this one.

Hello

for mx.abc.fi on port 25 not connected.

but when we do telnet for the relay **** ( provided in the request) for port 25 is connected and those we added in the /etc/mail/sendmail.cf file

Before trying to debug sendmail issues, verify that your LPAR can connect to mx.abc.fi on port 25.

Hello 

I have added relay under the /etc/mail/sendmail.cf file 

DS****

and restarted the sendmail service. when we check log file under the path /var/spool/mqueue and found no error in that file. 

but after some time if we cat same file we are getting error "MDeferred: Connection timed out with mx.abc.fi"

could you please suggest on this why its happening

Have you set the correct mail server in /etc/mail/submit.cf (DS)?

Hello Team,

I have configured the relay on the serverAIX7.3 but the email not received on target emails. also we have added relay servers entry in the /etc/hosts files and restarted the sendmail service but seem the error came. 

bash-5.2# cat /etc/mail/sendmail.cf |grep -i DS
# @(#)24        1.78  src/bos/usr/sbin/sendmail/sendmail.cf, cmdsend, bos720 6/6/12 04:39:10
# @(#)21        1.3  src/bos/usr/sbin/sendmail/cf/cf/sendmail.cf, cmdsend, bos73B, b2022_21A3 4/28/22 08:51:06
# COMPONENT_NAME: CMDSEND sendmail.cf
DSsmtp-out.dnaip.fi

when we checked the files under the path /var/spool/mqueue which generated after sending email from the server. wondering that after some time, we observed that same files we can see error like MDeferred: Connection timed out with mx.dnaip.fi

bash-5.2# oslevel -s
7300-03-01-2520
bash-5.2#

could you please help us what needs to check to correct this one.

If you're sending mail for someone @abc.fi (or any other domain with the same MX record) and get this, did you set the smart relay (DS) on both sendmail.cf and submit.cf ?

Hello

for mx.abc.fi on port 25 not connected.

but when we do telnet for the relay **** ( provided in the request) for port 25 is connected and those we added in the /etc/mail/sendmail.cf file

Before trying to debug sendmail issues, verify that your LPAR can connect to mx.abc.fi on port 25.

Hello 

I have added relay under the /etc/mail/sendmail.cf file 

DS****

and restarted the sendmail service. when we check log file under the path /var/spool/mqueue and found no error in that file. 

but after some time if we cat same file we are getting error "MDeferred: Connection timed out with mx.abc.fi"

could you please suggest on this why its happening

Have you set the correct mail server in /etc/mail/submit.cf (DS)?

Hello Team,

I have configured the relay on the serverAIX7.3 but the email not received on target emails. also we have added relay servers entry in the /etc/hosts files and restarted the sendmail service but seem the error came. 

bash-5.2# cat /etc/mail/sendmail.cf |grep -i DS
# @(#)24        1.78  src/bos/usr/sbin/sendmail/sendmail.cf, cmdsend, bos720 6/6/12 04:39:10
# @(#)21        1.3  src/bos/usr/sbin/sendmail/cf/cf/sendmail.cf, cmdsend, bos73B, b2022_21A3 4/28/22 08:51:06
# COMPONENT_NAME: CMDSEND sendmail.cf
DSsmtp-out.dnaip.fi

when we checked the files under the path /var/spool/mqueue which generated after sending email from the server. wondering that after some time, we observed that same files we can see error like MDeferred: Connection timed out with mx.dnaip.fi

bash-5.2# oslevel -s
7300-03-01-2520
bash-5.2#

could you please help us what needs to check to correct this one.

Hello

I set relay under the sendmail.cf only not submit.cf. can I add same relay in the submit.cf as well ?

If you're sending mail for someone @abc.fi (or any other domain with the same MX record) and get this, did you set the smart relay (DS) on both sendmail.cf and submit.cf ?

Hello

for mx.abc.fi on port 25 not connected.

but when we do telnet for the relay **** ( provided in the request) for port 25 is connected and those we added in the /etc/mail/sendmail.cf file

Before trying to debug sendmail issues, verify that your LPAR can connect to mx.abc.fi on port 25.

Hello 

I have added relay under the /etc/mail/sendmail.cf file 

DS****

and restarted the sendmail service. when we check log file under the path /var/spool/mqueue and found no error in that file. 

but after some time if we cat same file we are getting error "MDeferred: Connection timed out with mx.abc.fi"

could you please suggest on this why its happening

Have you set the correct mail server in /etc/mail/submit.cf (DS)?

Hello Team,

I have configured the relay on the serverAIX7.3 but the email not received on target emails. also we have added relay servers entry in the /etc/hosts files and restarted the sendmail service but seem the error came. 

bash-5.2# cat /etc/mail/sendmail.cf |grep -i DS
# @(#)24        1.78  src/bos/usr/sbin/sendmail/sendmail.cf, cmdsend, bos720 6/6/12 04:39:10
# @(#)21        1.3  src/bos/usr/sbin/sendmail/cf/cf/sendmail.cf, cmdsend, bos73B, b2022_21A3 4/28/22 08:51:06
# COMPONENT_NAME: CMDSEND sendmail.cf
DSsmtp-out.dnaip.fi

when we checked the files under the path /var/spool/mqueue which generated after sending email from the server. wondering that after some time, we observed that same files we can see error like MDeferred: Connection timed out with mx.dnaip.fi

bash-5.2# oslevel -s
7300-03-01-2520
bash-5.2#

could you please help us what needs to check to correct this one.

Yes.  submit.cf is used when you use "mail" on the LPAR to send an email, sendmail.cf is used by the sendmail daemon.

------------------------------
José Pina Coelho
IT Specialist at Kyndryl

Original Message:
Sent: Thu March 05, 2026 07:16 AM
From: Rahul Dandale
Subject: sendmail not working

Hello

I set relay under the sendmail.cf only not submit.cf. can I add same relay in the submit.cf as well ?

------------------------------
Rahul Dandale

Original Message:
Sent: Thu March 05, 2026 07:12 AM
From: José Pina Coelho
Subject: sendmail not working

If you're sending mail for someone @abc.fi (or any other domain with the same MX record) and get this, did you set the smart relay (DS) on both sendmail.cf and submit.cf ?

------------------------------
José Pina Coelho
IT Specialist at Kyndryl

Original Message:
Sent: Thu March 05, 2026 06:42 AM
From: Rahul Dandale
Subject: sendmail not working

Hello

for mx.abc.fi on port 25 not connected.

but when we do telnet for the relay **** ( provided in the request) for port 25 is connected and those we added in the /etc/mail/sendmail.cf file

------------------------------
Rahul Dandale

Original Message:
Sent: Thu March 05, 2026 06:36 AM
From: José Pina Coelho
Subject: sendmail not working

Before trying to debug sendmail issues, verify that your LPAR can connect to mx.abc.fi on port 25.

------------------------------
José Pina Coelho
IT Specialist at Kyndryl

Original Message:
Sent: Thu March 05, 2026 06:30 AM
From: Rahul Dandale
Subject: sendmail not working

Hello 

I have added relay under the /etc/mail/sendmail.cf file 

DS****

and restarted the sendmail service. when we check log file under the path /var/spool/mqueue and found no error in that file. 

but after some time if we cat same file we are getting error "MDeferred: Connection timed out with mx.abc.fi"

could you please suggest on this why its happening

------------------------------
Rahul Dandale

Original Message:
Sent: Thu March 05, 2026 06:04 AM
From: Christof Schwab
Subject: sendmail not working

Have you set the correct mail server in /etc/mail/submit.cf (DS)?

------------------------------
Christof

Original Message:
Sent: Wed March 04, 2026 12:52 AM
From: Rahul Dandale
Subject: sendmail not working

Hello Team,

I have configured the relay on the serverAIX7.3 but the email not received on target emails. also we have added relay servers entry in the /etc/hosts files and restarted the sendmail service but seem the error came. 

bash-5.2# cat /etc/mail/sendmail.cf |grep -i DS
# @(#)24        1.78  src/bos/usr/sbin/sendmail/sendmail.cf, cmdsend, bos720 6/6/12 04:39:10
# @(#)21        1.3  src/bos/usr/sbin/sendmail/cf/cf/sendmail.cf, cmdsend, bos73B, b2022_21A3 4/28/22 08:51:06
# COMPONENT_NAME: CMDSEND sendmail.cf
DSsmtp-out.dnaip.fi

when we checked the files under the path /var/spool/mqueue which generated after sending email from the server. wondering that after some time, we observed that same files we can see error like MDeferred: Connection timed out with mx.dnaip.fi

bash-5.2# oslevel -s
7300-03-01-2520
bash-5.2#

could you please help us what needs to check to correct this one.

------------------------------
Rahul Dandale
------------------------------

Yes.  submit.cf is used when you use "mail" on the LPAR to send an email, sendmail.cf is used by the sendmail daemon.

Hello

I set relay under the sendmail.cf only not submit.cf. can I add same relay in the submit.cf as well ?

If you're sending mail for someone @abc.fi (or any other domain with the same MX record) and get this, did you set the smart relay (DS) on both sendmail.cf and submit.cf ?

Hello

for mx.abc.fi on port 25 not connected.

but when we do telnet for the relay **** ( provided in the request) for port 25 is connected and those we added in the /etc/mail/sendmail.cf file

Before trying to debug sendmail issues, verify that your LPAR can connect to mx.abc.fi on port 25.

Hello 

I have added relay under the /etc/mail/sendmail.cf file 

DS****

and restarted the sendmail service. when we check log file under the path /var/spool/mqueue and found no error in that file. 

but after some time if we cat same file we are getting error "MDeferred: Connection timed out with mx.abc.fi"

could you please suggest on this why its happening

Have you set the correct mail server in /etc/mail/submit.cf (DS)?

Hello Team,

I have configured the relay on the serverAIX7.3 but the email not received on target emails. also we have added relay servers entry in the /etc/hosts files and restarted the sendmail service but seem the error came. 

bash-5.2# cat /etc/mail/sendmail.cf |grep -i DS
# @(#)24        1.78  src/bos/usr/sbin/sendmail/sendmail.cf, cmdsend, bos720 6/6/12 04:39:10
# @(#)21        1.3  src/bos/usr/sbin/sendmail/cf/cf/sendmail.cf, cmdsend, bos73B, b2022_21A3 4/28/22 08:51:06
# COMPONENT_NAME: CMDSEND sendmail.cf
DSsmtp-out.dnaip.fi

when we checked the files under the path /var/spool/mqueue which generated after sending email from the server. wondering that after some time, we observed that same files we can see error like MDeferred: Connection timed out with mx.dnaip.fi

bash-5.2# oslevel -s
7300-03-01-2520
bash-5.2#

could you please help us what needs to check to correct this one.

Hello

I set relay under the sendmail.cf only not submit.cf. can I add same relay in the submit.cf as well ?

If you're sending mail for someone @abc.fi (or any other domain with the same MX record) and get this, did you set the smart relay (DS) on both sendmail.cf and submit.cf ?

Hello

for mx.abc.fi on port 25 not connected.

but when we do telnet for the relay **** ( provided in the request) for port 25 is connected and those we added in the /etc/mail/sendmail.cf file

Before trying to debug sendmail issues, verify that your LPAR can connect to mx.abc.fi on port 25.

Hello 

I have added relay under the /etc/mail/sendmail.cf file 

DS****

and restarted the sendmail service. when we check log file under the path /var/spool/mqueue and found no error in that file. 

but after some time if we cat same file we are getting error "MDeferred: Connection timed out with mx.abc.fi"

could you please suggest on this why its happening

Have you set the correct mail server in /etc/mail/submit.cf (DS)?

Hello Team,

I have configured the relay on the serverAIX7.3 but the email not received on target emails. also we have added relay servers entry in the /etc/hosts files and restarted the sendmail service but seem the error came. 

bash-5.2# cat /etc/mail/sendmail.cf |grep -i DS
# @(#)24        1.78  src/bos/usr/sbin/sendmail/sendmail.cf, cmdsend, bos720 6/6/12 04:39:10
# @(#)21        1.3  src/bos/usr/sbin/sendmail/cf/cf/sendmail.cf, cmdsend, bos73B, b2022_21A3 4/28/22 08:51:06
# COMPONENT_NAME: CMDSEND sendmail.cf
DSsmtp-out.dnaip.fi

when we checked the files under the path /var/spool/mqueue which generated after sending email from the server. wondering that after some time, we observed that same files we can see error like MDeferred: Connection timed out with mx.dnaip.fi

bash-5.2# oslevel -s
7300-03-01-2520
bash-5.2#

could you please help us what needs to check to correct this one.

Hello Team,

I have configured the relay on the serverAIX7.3 but the email not received on target emails. also we have added relay servers entry in the /etc/hosts files and restarted the sendmail service but seem the error came. 

bash-5.2# cat /etc/mail/sendmail.cf |grep -i DS
# @(#)24        1.78  src/bos/usr/sbin/sendmail/sendmail.cf, cmdsend, bos720 6/6/12 04:39:10
# @(#)21        1.3  src/bos/usr/sbin/sendmail/cf/cf/sendmail.cf, cmdsend, bos73B, b2022_21A3 4/28/22 08:51:06
# COMPONENT_NAME: CMDSEND sendmail.cf
DSsmtp-out.dnaip.fi

when we checked the files under the path /var/spool/mqueue which generated after sending email from the server. wondering that after some time, we observed that same files we can see error like MDeferred: Connection timed out with mx.dnaip.fi

bash-5.2# oslevel -s
7300-03-01-2520
bash-5.2#

could you please help us what needs to check to correct this one.

Hi, add the relay server to the /etc/mail/submit.cf and try again.

------------------------------
Guillermo Ordonez

Original Message:
Sent: Wed March 04, 2026 12:52 AM
From: Rahul Dandale
Subject: sendmail not working

Hello Team,

I have configured the relay on the serverAIX7.3 but the email not received on target emails. also we have added relay servers entry in the /etc/hosts files and restarted the sendmail service but seem the error came. 

bash-5.2# cat /etc/mail/sendmail.cf |grep -i DS
# @(#)24        1.78  src/bos/usr/sbin/sendmail/sendmail.cf, cmdsend, bos720 6/6/12 04:39:10
# @(#)21        1.3  src/bos/usr/sbin/sendmail/cf/cf/sendmail.cf, cmdsend, bos73B, b2022_21A3 4/28/22 08:51:06
# COMPONENT_NAME: CMDSEND sendmail.cf
DSsmtp-out.dnaip.fi

when we checked the files under the path /var/spool/mqueue which generated after sending email from the server. wondering that after some time, we observed that same files we can see error like MDeferred: Connection timed out with mx.dnaip.fi

bash-5.2# oslevel -s
7300-03-01-2520
bash-5.2#

could you please help us what needs to check to correct this one.

------------------------------
Rahul Dandale
------------------------------

Hello 

yeah, we did it but no luck 

getting below error.

==== ====================

Connecting to mx.abc.fi. via relay...
Deferred: Connection timed out with mx.abc.fi.

========= ==============

when we removed relay entry from submit.cf file then error gone. seems no email delivered to my email id

------------------------------
Rahul

Original Message:
Sent: Thu March 05, 2026 03:47 AM
From: Guillermo Ordonez
Subject: sendmail not working

Hi, add the relay server to the /etc/mail/submit.cf and try again.

------------------------------
Guillermo Ordonez

Original Message:
Sent: Wed March 04, 2026 12:52 AM
From: Rahul Dandale
Subject: sendmail not working

Hello Team,

I have configured the relay on the serverAIX7.3 but the email not received on target emails. also we have added relay servers entry in the /etc/hosts files and restarted the sendmail service but seem the error came. 

bash-5.2# cat /etc/mail/sendmail.cf |grep -i DS
# @(#)24        1.78  src/bos/usr/sbin/sendmail/sendmail.cf, cmdsend, bos720 6/6/12 04:39:10
# @(#)21        1.3  src/bos/usr/sbin/sendmail/cf/cf/sendmail.cf, cmdsend, bos73B, b2022_21A3 4/28/22 08:51:06
# COMPONENT_NAME: CMDSEND sendmail.cf
DSsmtp-out.dnaip.fi

when we checked the files under the path /var/spool/mqueue which generated after sending email from the server. wondering that after some time, we observed that same files we can see error like MDeferred: Connection timed out with mx.dnaip.fi

bash-5.2# oslevel -s
7300-03-01-2520
bash-5.2#

could you please help us what needs to check to correct this one.

------------------------------
Rahul Dandale
------------------------------

Things I would check:

Is your sendmail service on the AIX host active?

Is the AIX host configured in the relay server, mx.abc.fi?

Is there a firewall between your AIX host and mx.abc.fi?

------------------------------
Angel Bugarin

Original Message:
Sent: Thu March 05, 2026 08:21 AM
From: Rahul Dandale
Subject: sendmail not working

Hello 

yeah, we did it but no luck 

getting below error.

==== ====================

Connecting to mx.abc.fi. via relay...
Deferred: Connection timed out with mx.abc.fi.

========= ==============

when we removed relay entry from submit.cf file then error gone. seems no email delivered to my email id

------------------------------
Rahul

Original Message:
Sent: Thu March 05, 2026 03:47 AM
From: Guillermo Ordonez
Subject: sendmail not working

Hi, add the relay server to the /etc/mail/submit.cf and try again.

------------------------------
Guillermo Ordonez

Original Message:
Sent: Wed March 04, 2026 12:52 AM
From: Rahul Dandale
Subject: sendmail not working

Hello Team,

I have configured the relay on the serverAIX7.3 but the email not received on target emails. also we have added relay servers entry in the /etc/hosts files and restarted the sendmail service but seem the error came. 

bash-5.2# cat /etc/mail/sendmail.cf |grep -i DS
# @(#)24        1.78  src/bos/usr/sbin/sendmail/sendmail.cf, cmdsend, bos720 6/6/12 04:39:10
# @(#)21        1.3  src/bos/usr/sbin/sendmail/cf/cf/sendmail.cf, cmdsend, bos73B, b2022_21A3 4/28/22 08:51:06
# COMPONENT_NAME: CMDSEND sendmail.cf
DSsmtp-out.dnaip.fi

when we checked the files under the path /var/spool/mqueue which generated after sending email from the server. wondering that after some time, we observed that same files we can see error like MDeferred: Connection timed out with mx.dnaip.fi

bash-5.2# oslevel -s
7300-03-01-2520
bash-5.2#

could you please help us what needs to check to correct this one.

------------------------------
Rahul Dandale
------------------------------

Is your sendmail service on the AIX host active? ---Yes

Is the AIX host configured in the relay server, mx.abc.fi? ---- Yes added relay host entry in /etc/hosts file

Is there a firewall between your AIX host and mx.abc.fi? ---no firewall

------------------------------
Rahul Dandale

Original Message:
Sent: Thu March 05, 2026 09:05 AM
From: Angel Bugarin
Subject: sendmail not working

Things I would check:

Is your sendmail service on the AIX host active?

Is the AIX host configured in the relay server, mx.abc.fi?

Is there a firewall between your AIX host and mx.abc.fi?

------------------------------
Angel Bugarin

Original Message:
Sent: Thu March 05, 2026 08:21 AM
From: Rahul Dandale
Subject: sendmail not working

Hello 

yeah, we did it but no luck 

getting below error.

==== ====================

Connecting to mx.abc.fi. via relay...
Deferred: Connection timed out with mx.abc.fi.

========= ==============

when we removed relay entry from submit.cf file then error gone. seems no email delivered to my email id

------------------------------
Rahul

Original Message:
Sent: Thu March 05, 2026 03:47 AM
From: Guillermo Ordonez
Subject: sendmail not working

Hi, add the relay server to the /etc/mail/submit.cf and try again.

------------------------------
Guillermo Ordonez

Original Message:
Sent: Wed March 04, 2026 12:52 AM
From: Rahul Dandale
Subject: sendmail not working

Hello Team,

I have configured the relay on the serverAIX7.3 but the email not received on target emails. also we have added relay servers entry in the /etc/hosts files and restarted the sendmail service but seem the error came. 

bash-5.2# cat /etc/mail/sendmail.cf |grep -i DS
# @(#)24        1.78  src/bos/usr/sbin/sendmail/sendmail.cf, cmdsend, bos720 6/6/12 04:39:10
# @(#)21        1.3  src/bos/usr/sbin/sendmail/cf/cf/sendmail.cf, cmdsend, bos73B, b2022_21A3 4/28/22 08:51:06
# COMPONENT_NAME: CMDSEND sendmail.cf
DSsmtp-out.dnaip.fi

when we checked the files under the path /var/spool/mqueue which generated after sending email from the server. wondering that after some time, we observed that same files we can see error like MDeferred: Connection timed out with mx.dnaip.fi

bash-5.2# oslevel -s
7300-03-01-2520
bash-5.2#

could you please help us what needs to check to correct this one.

------------------------------
Rahul Dandale
------------------------------

This doesn't sound right.

"Is the AIX host configured in the relay server, mx.abc.fi? ---- Yes added relay host entry in /etc/hosts file"   

Check with the admin who manage the relay server, mx.abc.fi, and make sure your AIX host is configured in that server accordingly. Meaning, your AIX host is allowed to send or "relay" emails through it. 

------------------------------
Angel Bugarin

Original Message:
Sent: Thu March 05, 2026 09:13 AM
From: Rahul Dandale
Subject: sendmail not working

Is your sendmail service on the AIX host active? ---Yes

Is the AIX host configured in the relay server, mx.abc.fi? ---- Yes added relay host entry in /etc/hosts file

Is there a firewall between your AIX host and mx.abc.fi? ---no firewall

------------------------------
Rahul Dandale

Original Message:
Sent: Thu March 05, 2026 09:05 AM
From: Angel Bugarin
Subject: sendmail not working

Things I would check:

Is your sendmail service on the AIX host active?

Is the AIX host configured in the relay server, mx.abc.fi?

Is there a firewall between your AIX host and mx.abc.fi?

------------------------------
Angel Bugarin

Original Message:
Sent: Thu March 05, 2026 08:21 AM
From: Rahul Dandale
Subject: sendmail not working

Hello 

yeah, we did it but no luck 

getting below error.

==== ====================

Connecting to mx.abc.fi. via relay...
Deferred: Connection timed out with mx.abc.fi.

========= ==============

when we removed relay entry from submit.cf file then error gone. seems no email delivered to my email id

------------------------------
Rahul

Original Message:
Sent: Thu March 05, 2026 03:47 AM
From: Guillermo Ordonez
Subject: sendmail not working

Hi, add the relay server to the /etc/mail/submit.cf and try again.

------------------------------
Guillermo Ordonez

Original Message:
Sent: Wed March 04, 2026 12:52 AM
From: Rahul Dandale
Subject: sendmail not working

Hello Team,

I have configured the relay on the serverAIX7.3 but the email not received on target emails. also we have added relay servers entry in the /etc/hosts files and restarted the sendmail service but seem the error came. 

bash-5.2# cat /etc/mail/sendmail.cf |grep -i DS
# @(#)24        1.78  src/bos/usr/sbin/sendmail/sendmail.cf, cmdsend, bos720 6/6/12 04:39:10
# @(#)21        1.3  src/bos/usr/sbin/sendmail/cf/cf/sendmail.cf, cmdsend, bos73B, b2022_21A3 4/28/22 08:51:06
# COMPONENT_NAME: CMDSEND sendmail.cf
DSsmtp-out.dnaip.fi

when we checked the files under the path /var/spool/mqueue which generated after sending email from the server. wondering that after some time, we observed that same files we can see error like MDeferred: Connection timed out with mx.dnaip.fi

bash-5.2# oslevel -s
7300-03-01-2520
bash-5.2#

could you please help us what needs to check to correct this one.

------------------------------
Rahul Dandale
------------------------------

Hello Angel ,

I will let you know as soon as I receive input from the admin team. It might take a little time for those updates to come through, but I'll keep you posted.

Thank you very much for your inputs and valuable time on this so far.

This doesn't sound right.

"Is the AIX host configured in the relay server, mx.abc.fi? ---- Yes added relay host entry in /etc/hosts file"   

Check with the admin who manage the relay server, mx.abc.fi, and make sure your AIX host is configured in that server accordingly. Meaning, your AIX host is allowed to send or "relay" emails through it. 

------------------------------
Angel Bugarin

Original Message:
Sent: Thu March 05, 2026 09:13 AM
From: Rahul Dandale
Subject: sendmail not working

Is your sendmail service on the AIX host active? ---Yes

Is the AIX host configured in the relay server, mx.abc.fi? ---- Yes added relay host entry in /etc/hosts file

Is there a firewall between your AIX host and mx.abc.fi? ---no firewall

------------------------------
Rahul Dandale

Original Message:
Sent: Thu March 05, 2026 09:05 AM
From: Angel Bugarin
Subject: sendmail not working

Things I would check:

Is your sendmail service on the AIX host active?

Is the AIX host configured in the relay server, mx.abc.fi?

Is there a firewall between your AIX host and mx.abc.fi?

------------------------------
Angel Bugarin

Original Message:
Sent: Thu March 05, 2026 08:21 AM
From: Rahul Dandale
Subject: sendmail not working

Hello 

yeah, we did it but no luck 

getting below error.

==== ====================

Connecting to mx.abc.fi. via relay...
Deferred: Connection timed out with mx.abc.fi.

========= ==============

when we removed relay entry from submit.cf file then error gone. seems no email delivered to my email id

------------------------------
Rahul

Original Message:
Sent: Thu March 05, 2026 03:47 AM
From: Guillermo Ordonez
Subject: sendmail not working

Hi, add the relay server to the /etc/mail/submit.cf and try again.

------------------------------
Guillermo Ordonez

Original Message:
Sent: Wed March 04, 2026 12:52 AM
From: Rahul Dandale
Subject: sendmail not working

Hello Team,

I have configured the relay on the serverAIX7.3 but the email not received on target emails. also we have added relay servers entry in the /etc/hosts files and restarted the sendmail service but seem the error came. 

bash-5.2# cat /etc/mail/sendmail.cf |grep -i DS
# @(#)24        1.78  src/bos/usr/sbin/sendmail/sendmail.cf, cmdsend, bos720 6/6/12 04:39:10
# @(#)21        1.3  src/bos/usr/sbin/sendmail/cf/cf/sendmail.cf, cmdsend, bos73B, b2022_21A3 4/28/22 08:51:06
# COMPONENT_NAME: CMDSEND sendmail.cf
DSsmtp-out.dnaip.fi

when we checked the files under the path /var/spool/mqueue which generated after sending email from the server. wondering that after some time, we observed that same files we can see error like MDeferred: Connection timed out with mx.dnaip.fi

bash-5.2# oslevel -s
7300-03-01-2520
bash-5.2#

could you please help us what needs to check to correct this one.

------------------------------
Rahul Dandale
------------------------------

Hello All,

Now sendmail is working fine and mail delivered successfully.

what I did ......

enclose the relay host in square brackets in sendmail.cf file (e.g., DS[mail.example.com]) and restarted the sendmail service. 

tested the email and its delivered successfully.

Thank you so much all of you for your suggestions on this issue.

Hello Angel ,

I will let you know as soon as I receive input from the admin team. It might take a little time for those updates to come through, but I'll keep you posted.

Thank you very much for your inputs and valuable time on this so far.

This doesn't sound right.

"Is the AIX host configured in the relay server, mx.abc.fi? ---- Yes added relay host entry in /etc/hosts file"   

Check with the admin who manage the relay server, mx.abc.fi, and make sure your AIX host is configured in that server accordingly. Meaning, your AIX host is allowed to send or "relay" emails through it. 

------------------------------
Angel Bugarin

Original Message:
Sent: Thu March 05, 2026 09:13 AM
From: Rahul Dandale
Subject: sendmail not working

Is your sendmail service on the AIX host active? ---Yes

Is the AIX host configured in the relay server, mx.abc.fi? ---- Yes added relay host entry in /etc/hosts file

Is there a firewall between your AIX host and mx.abc.fi? ---no firewall

------------------------------
Rahul Dandale

Original Message:
Sent: Thu March 05, 2026 09:05 AM
From: Angel Bugarin
Subject: sendmail not working

Things I would check:

Is your sendmail service on the AIX host active?

Is the AIX host configured in the relay server, mx.abc.fi?

Is there a firewall between your AIX host and mx.abc.fi?

------------------------------
Angel Bugarin

Original Message:
Sent: Thu March 05, 2026 08:21 AM
From: Rahul Dandale
Subject: sendmail not working

Hello 

yeah, we did it but no luck 

getting below error.

==== ====================

Connecting to mx.abc.fi. via relay...
Deferred: Connection timed out with mx.abc.fi.

========= ==============

when we removed relay entry from submit.cf file then error gone. seems no email delivered to my email id

------------------------------
Rahul

Original Message:
Sent: Thu March 05, 2026 03:47 AM
From: Guillermo Ordonez
Subject: sendmail not working

Hi, add the relay server to the /etc/mail/submit.cf and try again.

------------------------------
Guillermo Ordonez

Original Message:
Sent: Wed March 04, 2026 12:52 AM
From: Rahul Dandale
Subject: sendmail not working

Hello Team,

I have configured the relay on the serverAIX7.3 but the email not received on target emails. also we have added relay servers entry in the /etc/hosts files and restarted the sendmail service but seem the error came. 

bash-5.2# cat /etc/mail/sendmail.cf |grep -i DS
# @(#)24        1.78  src/bos/usr/sbin/sendmail/sendmail.cf, cmdsend, bos720 6/6/12 04:39:10
# @(#)21        1.3  src/bos/usr/sbin/sendmail/cf/cf/sendmail.cf, cmdsend, bos73B, b2022_21A3 4/28/22 08:51:06
# COMPONENT_NAME: CMDSEND sendmail.cf
DSsmtp-out.dnaip.fi

when we checked the files under the path /var/spool/mqueue which generated after sending email from the server. wondering that after some time, we observed that same files we can see error like MDeferred: Connection timed out with mx.dnaip.fi

bash-5.2# oslevel -s
7300-03-01-2520
bash-5.2#

could you please help us what needs to check to correct this one.

------------------------------
Rahul Dandale
------------------------------