Cyrus to Courier Switch

I had installed ISPConfig with Cyrus originally. After finding out it actually wouldn't work, I uninstalled the Cyrus.
I then installed Courier but no mail is working.

Snippet from mail log when using sendmail locally to send to a local account:

Code:

Mar 27 12:04:34 web1 postfix/pickup[27243]: 874A4F82C: uid=0 from=<root>
Mar 27 12:04:34 web1 postfix/cleanup[27258]: 874A4F82C: message-id=<[email protected]>
Mar 27 12:04:34 web1 postfix/qmgr[25672]: 874A4F82C: from=<[email protected]>, size=339, nrcpt=1 (queue active)
Mar 27 12:04:34 web1 postfix/pickup[27243]: C61D8F831: uid=10006 from=<tgreene>
Mar 27 12:04:34 web1 postfix/cleanup[27258]: C61D8F831: message-id=<[email protected]>
Mar 27 12:04:34 web1 postfix/local[27266]: 874A4F82C: to=<[email protected]>, orig_to=<[email protected]>, relay=local, delay=0, status=sent (delivered to command: /usr/bin/procmail -f-)
Mar 27 12:04:34 web1 postfix/qmgr[25672]: 874A4F82C: removed
Mar 27 12:04:34 web1 postfix/qmgr[25672]: C61D8F831: from=<[email protected]>, size=385, nrcpt=1 (queue active)
Mar 27 12:04:34 web1 postfix/local[27266]: C61D8F831: to=<[email protected]>, relay=local, delay=0, status=sent (delivered to command: /usr/bin/procmail -f-)
Mar 27 12:04:34 web1 postfix/qmgr[25672]: C61D8F831: removed

Something isn't right because I cannot find the message! Please help this fool!

 

Ok, I found the mail. And the local delivery is working.
External delivery is not.
I presume something with the maildrop isn't working? Any thoughts how to switch it over?

 

What's in the mail log when you send a mail to an external address?
What's in /etc/postfix/main.cf?

 

**solved**

Sorry I didn't post back!

Turns out it was an internal DNS issue of all things. I feel so stupid!

For anyone who does end up switching between these, there is no configuration required (at least on SLES 10 sp1).

Thanks for getting back to me Falco.