[I'm in the process of setting up new servers for my smallish hosting operation, moving from a custom setup using linuxconf virtual users. I have a 10-virtual domain license to experiment with and a server in a sandbox, will likely be upgrading to a 50-domain license and beyond.]
I started with a fresh Centos 5.1 install running Sendmail.
Installed Webmin. Configured for Sendmail.
Installed Virtualmin Pro. Changed things to use Postfix.
I changed things back to Sendmail, but etc/alternatives still has these symlinks:
lrwxrwxrwx 1 root root 35 Mar 16 21:18 fedora-usermgmt -> /etc/fedora/usermgmt/scripts.legacy
lrwxrwxrwx 1 root root 26 Mar 21 00:27 mta -> /usr/sbin/sendmail.postfix
lrwxrwxrwx 1 root root 40 Mar 16 21:18 mta-aliasesman -> /usr/share/man/man5/aliases.postfix.5.gz
lrwxrwxrwx 1 root root 22 Mar 16 21:18 mta-mailq -> /usr/bin/mailq.postfix
lrwxrwxrwx 1 root root 38 Mar 16 21:18 mta-mailqman -> /usr/share/man/man1/mailq.postfix.1.gz
lrwxrwxrwx 1 root root 27 Mar 16 21:18 mta-newaliases -> /usr/bin/newaliases.postfix
lrwxrwxrwx 1 root root 43 Mar 16 21:18 mta-newaliasesman -> /usr/share/man/man1/newaliases.postfix.1.gz
lrwxrwxrwx 1 root root 23 Mar 16 21:18 mta-pam -> /etc/pam.d/smtp.postfix
lrwxrwxrwx 1 root root 22 Mar 16 21:18 mta-rmail -> /usr/bin/rmail.postfix
lrwxrwxrwx 1 root root 25 Mar 16 21:18 mta-sendmail -> /usr/lib/sendmail.postfix
lrwxrwxrwx 1 root root 41 Mar 16 21:18 mta-sendmailman -> /usr/share/man/man1/sendmail.postfix.1.gz
I changed the symlink of mta to point to sendmail.sendmail, but I'm not sure what else needs to be changed.
In any event, this is something that might need to be corrected, or perhaps I need to be shown what I missed.