sendmail send, multiple interfaces - how to use the right one?

[ThurnerRupert]

we run trac on a server with multiple ip addresses. for the webserver we can configure which one to use. for sending mails we are not sure which one is the client. having a mail server which only takes mails from predefined ip-addresses, we wonder how to tell trac to send from a dedicated ip address:

• ​http://docs.python.org/lib/SMTP-objects.html
• source:/trunk/trac/notification.py

[Emmanuel Blot]

This is an installation issue more than an issue with Trac.

You need to tell Apache which network port to consider, because it acts as a server.

However, SMTP in Trac acts as a client, and your kernel routing table should be able to use the appropriate port to reach the SMTP server - except if you have several paths to reach this server.

Is your server in this latter case?

[sid]

As eblot pointed out, this is an installation issue. Without any new information, there is also nothing further we can do. Closing.