Suddenly my Domino server wasn't receiving mail anymore.
I had upgraded from Centos 5.4 to version 5.5 via Webmin. It all went well.
This morning I found out to my surprise, I was not receiving mail anymore, so I looked in the Log database.
ERROR: bindsock' helper application is missing, not executable, not setuid root, or no sticky bit set
SMTP Server: Listener failure: 'bindsock' is missing, not executable, not owned by root, not setuid root or user needs net_privaddr privilege.
I quickly did a Google search which indicated that Sendmail could be the issue.
And yes it was. The Sendmail had been re-enabled as a startup service and was "Bogarting" the SMTP port.
Annoying!
Why are Centos (Red Hat) setting Sendmail to start at boot when it was disabled?
I thought it was only "the another company" who would do such a stupid thing...