Resolved mail() no longer working after Plesk Obsidian 18.0.21 Update 3

[zoldos]

My PHP 7.3.11 mail() function worked perfectly last night, but it appears after the Plesk Obsidian 18.0.21 Update 3, it no longer does. This is from my Ubuntu 16.04 mail.log right as I attempted to send a mail:

[Nov 25 15:43:44 condor1310 check-quota[5553]: Starting the check-quota filter...
Nov 25 15:43:44 condor1310 plesk sendmail[5552]: handlers_stderr: SKIP
Nov 25 15:43:44 condor1310 plesk sendmail[5552]: SKIP during call 'check-quota' handler
Nov 25 15:48:01 condor1310 check-quota[6103]: Starting the check-quota filter...
Nov 25 15:48:01 condor1310 plesk sendmail[6102]: handlers_stderr: SKIP
Nov 25 15:48:01 condor1310 plesk sendmail[6102]: SKIP during call 'check-quota' handler
Nov 25 15:58:29 condor1310 check-quota[7224]: Starting the check-quota filter...
Nov 25 15:58:29 condor1310 plesk sendmail[7223]: handlers_stderr: SKIP
Nov 25 15:58:29 condor1310 plesk sendmail[7223]: SKIP during call 'check-quota' handler
Nov 25 16:15:03 condor1310 check-quota[9166]: Starting the check-quota filter...
Nov 25 16:15:03 condor1310 plesk sendmail[9165]: handlers_stderr: SKIP
Nov 25 16:15:03 condor1310 plesk sendmail[9165]: SKIP during call 'check-quota' handler

Help please!

 

[Nik G]

Hello Zoldos,

what MTA are you using: postfix or qmail ?
i don't see its invocation in these logs.

could you please provide an output of the command below:
plesk version ; dpkg -l|egrep -i 'qmail|postfix|dovecot|courier'

is your MTA running ?
you can check that by execution systemctl status qmail or systemctl status postfix (depends what exectly you use)

 

[zoldos]

Thanks for the reply! Turns out Postfix wasn't running. I restarted it, and bam, everything worked!