On 1/4/19 8:29 PM, Lamar Owen wrote: > I have had updates twice now switch the active MTA to sendmail, and I > have to manually 'systemctl disable sendmail; systemctl stop sendmail' > and 'systemctl enable postfix;systemctl start postfix' afterwards. Run "systemctl mask sendmail" as well. That should permanently disable the service. > I am trying to find out what package update caused this to switch; or > which logfile to look at to show me the systemctl messages that show > the enable/disable sequence and points me to the correct package to > file the bug against. You could look for any package that refers to sendmail in a script or trigger: rpm -qa | while read pkg do rpm -q --scripts --triggers "$pkg" | grep -q sendmail && echo "$pkg" done > Sendmail hasn't had updated packages in a long time, since August > 2017. None of the package scriptlets from the above packages look like > they would affect the sendmail setup. So, I'm looking for suggestions > on where to start looking for the data to ferret this out; no clues > are in /var/log/messages or /var/log/yum.log. If the problem is a trigger on the sendmail package, it could run without any changes to the sendmail package itself.