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Postfix doesn't load on server restart

TomBoB

Silver Pleskian
Hi,

we're running some cloud servers, all CentOS 7 latest update, with Plesk 12.5 latest MU

noticed on all of them that after a server restart (the first 4 times the server restarts were unannounced / unintentional - caused by data warehouse issue) the postfix service wasn't working afterwards. [Got phone calls from customers wondering about email issue].

Initially just logged in via SSH, ran
# systemctl restart postfix
and postfix ran fine. Didn't dig further.

Now it happened again - and I wanted to know why. Did
# systemctl status postfix
with result
postfix.service - Postfix Mail Transport Agent
Loaded: loaded (/usr/lib/systemd/system/postfix.service; disabled)
Active: active (running) since Tue 2015-11-17 23:22:29 CET; 11h ago
Now why would the postfix service be disabled on startup?
Cornfirmed that it's disabled on startup (and looked for other disabled services) with
# systemctl list-unit-files --type=service

and enabled the service with
# systemctl enable postfix

---
Same scenario on all our servers !
---

Igor, may i ask you to check on this scenario? Didn't have the issue on any previous Plesk version all the way back to 9. Nor did I have it running Plesk 12.5 on CentOS 6 previously.
All servers are "Personal Cloud Servers" and when ordered come with Plesk pre-loaded.

Plesk 12.5 on installation doesn't seem to check that/if the underlying CentOS 7 has postfix enabled on server startup even though postfix is chosen as mail transport.

Thanks :)
 
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