Paul,
Each post creates a new session in IS. 2,000 messages / day is not a large number. However, if each message was 500Mb in size or if the messages each required lots of work to process or if your IS was running on a recycled 386 with 128M of memory, you might have an issue.
In short, you can’t plan adequately for performance without much more data than you’ve provided and without conducting your own performance tests to validate any design-time assumptions.
HTH,
Mark
#Integration-Server-and-ESB#webMethods#webmethods-Protocol-and-Transport