Description of problem:

A routine update of the sendmail package caused the sendmail service to become enabled on boot.

At the next reboot, sendmail started when it should not have done, bound to port 25 when it should not have done, prevented postfix from starting when it should not have done, and triggered loss of email.

Version-Release number of selected component (if applicable):

sendmail-8.14.7-6

How reproducible:

Always.

Steps to Reproduce:
1. Update a mailserver running postfix.
2.
3.

Actual results:

sendmail daemon starts on boot and breaks postfix.

Expected results:

sendmail daemon does not automatically enable itself on update.

Additional info: