Here is my problem with sendmail
Oracle Linux 6.5 sendmail-8.14.4-8.el6.x86_64
Need appworx user on Oracle Linux to send mail to internal / external servers We have a barracuda t that processes our Microsoft Exchange servers. All internal addresses need to go to the barracuda. We have a external facing mail relay server that we need to send mail to external vendors.
I have done the following
set SMART_RELAY in sendmail.mc to the barracuda
1.1 internal addressed mail works fine
1.2. external vendor addresses come back from barracuda as no address found
set SMART_REPLAY in sendmail.mc to our external facing mail relay server
2.1 internal addressed mail fails
2.2 external vendor addresses works fine
set SMART_RELAY to both `barracuda...:external' in sendmail.mc
3.1 internal addressed mail works fine
3.2 external vendor addresses come back from barracuda as no address found
How do we get sendmail to determine which mail relay server to send the mail through?