Bug 1159982

IIRC nothing relevant was changed in postfix spec. Is postfix your default MTA?

# alternatives --config mta

Yes, Postfix is and has been my default and only MTA:

> # alternatives --config mta
> 
> There is 1 program that provides 'mta'.
> 
>   Selection    Command
> -----------------------------------------------
> *+ 1           /usr/sbin/sendmail.postfix
> 
> Enter to keep the current selection[+], or type selection number: 

One machine was a fresh install of Fedora 20 back at the F20 release date a while back, the other has been upgraded via Fedup from 18 -> 19 -> 20.  I've used nothing other than Postfix on either of these machines.

Thanks for info, it's also happening during upgrade/downgrade between arbitrary postfix versions, thus it's very probably not regression in postfix package. I guess this is regression in alternatives or systemd macros, let me check this.

Yep. I just noticed I haven't been getting mail since I got
postfix-2.10.5-1.fc20.x86_64 on Nov 3.

I've been running postfix since I did a clean install of f20 back when it was first released and have probably had several updates since then, but this one disabled it.

This seems to be regression in alternatives command:

Postfix is the only MTA installed through alternatives:
# systemctl is-enabled postfix
enabled

# alternatives 
# /usr/sbin/alternatives --install /usr/sbin/sendmail mta /usr/sbin/sendmail.postfix 30 --initscript postfix

# systemctl is-enabled postfix
disabled

Reassigning to chkconfig.

It's probably related to this:
chkconfig-1.3.62-1
* Tue Aug 12 2014 Lukáš Nykrýn <lnykryn> - 1.3.62-1
- use systemctl preset, not systemctl enable

I can confirm that downgrading to chkconfig-1.3.60-4.fc20 resolves the problem for me.

Simple reproducer:
Install postfix:
# yum install postfix

Uninstall all other MTAs, e.g.:
# yum remove sendmail esmtp

# systemctl enable postfix
# dnf reinstall postfix
# systemctl is-enabled postfix

Current result:
disabled

Expected result:
enabled

Hmm this could be caused by https://git.fedorahosted.org/cgit/chkconfig.git/commit/?id=e4a7975de597e5571d65f852aea3e54eee671897

Maybe we should call systemctl is-enabled || systemctl preset

(In reply to Lukáš Nykrýn from comment #8)
> Hmm this could be caused by
> https://git.fedorahosted.org/cgit/chkconfig.git/commit/
> ?id=e4a7975de597e5571d65f852aea3e54eee671897
> 
> Maybe we should call systemctl is-enabled || systemctl preset

It seems so, but what about:
# systemctl enable sendmail
# alternatives --config mta # set postfix

Previously it enabled postfix and disabled sendmail. Currently it sets postfix according to preset which means set it to disabled.

I don't think that this is a problem. I really like the idea that services are automatically enabled only in the case that they are in presets.

chkconfig-1.3.63-1.fc20 has been submitted as an update for Fedora 20.
https://admin.fedoraproject.org/updates/chkconfig-1.3.63-1.fc20

*** Bug 1160880 has been marked as a duplicate of this bug. ***

Package chkconfig-1.3.63-1.fc20:
* should fix your issue,
* was pushed to the Fedora 20 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing chkconfig-1.3.63-1.fc20'
as soon as you are able to.
Please go to the following url:
https://admin.fedoraproject.org/updates/FEDORA-2014-14392/chkconfig-1.3.63-1.fc20
then log in and leave karma (feedback).

chkconfig-1.3.63-1.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.