External SMTP Relay not sending email from Plesk Panel.

[squorpeeon]

I have Plesk 12 on CentOS 7. I have only MSMTP installed not Postfix or Qmail. No matter what settings I use in the external SMTP settings the mail is never sent and I cannot find any error logs.

I have tried gmail smtp, sendgrid smtp and another smtp server that I own.

This is not a firewall issue as far as I can tell since if I install postfix it just works. Also any Wordpress or Joomla installs that use SMTP settings with gmail or sendgrid work just fine.

Screenshot for information only. I used accurate usernames, passwords, etc.

Any help is appreciated.

 

[Manuel_Caramia]

Have you try to set port 25?
Have you eneble "smtp authorization"?

 

[squorpeeon]

I tried 25, 587, 465, with and without ssl and with auth on and auth login. If I could find a log file somewhere that would probably help.

 

[UFHH01]

Hi squorpeeon,

you could have a look at "/usr/local/psa/var/log/maillog" to see some strange behaviour, or misconfiguration.

 

[squorpeeon]

I did check there. I have a feeling that is only created if you install a mail server.
"No such file or directory"

 

[squorpeeon]

I'm getting somewhere and nowhere really fast. This KB was really helpful finding the log files, http://kb.odin.com/en/111283.
The ones I found aren't very descriptive.

[2015-04-08 15:00:47] ERR [panel] Unable to send mail.

[2015-04-08 15:00:47] ERR [panel] Error sending the report: Unable to send mail.

 

[squorpeeon]

Just for the heck of it I fired up a fresh instance on Digital Ocean and another on Linode. Same result, unable to send mail.

 

[UFHH01]

Hi squorpeeon,

I normally would try to investigate the issue with you, but due to the case, that CentOS 7.1 is not supported with Plesk 12 at the moment, I would recommend to use another OS, at the moment.

CentOS 7.1 released - ETA for Plesk 12 support ( Forum - Link ) ​

 

[squorpeeon]

Ah, intersting. In that case I'll just wait for 7.1 support. Other than panel notifications not working the setup is fast and rock solid. I don't sell web hosting either so I can wait.

 

[squorpeeon]

Quick update. I tried the recommended CentOS 7 with the same result. Can anyone confirm that installing Plesk 12 without a mail server and using the msmtp relay option actually works?

 

[IgorG]

BTW, CentOS 7.1 is supported already - http://kb.odin.com/en/125181

 

[RuslanT]

Quick update. I tried the recommended CentOS 7 with the same result. Can anyone confirm that installing Plesk 12 without a mail server and using the msmtp relay option actually works?

Hello squorpeeon,

I was able to reproduce the issue and reported it with ID: PPPM-2732
The root cause is missing sendmail links during installation. You can workaround it running: # /usr/sbin/update-alternatives --set mta /usr/bin/msmtp

[root@a10-52-52-117 ~]# ll /usr/lib/sendmail /usr/bin/newaliases  /usr/sbin/sendmail
ls: cannot access /usr/lib/sendmail: No such file or directory
ls: cannot access /usr/bin/newaliases: No such file or directory
ls: cannot access /usr/sbin/sendmail: No such file or directory
[root@a10-52-52-117 ~]# /usr/sbin/update-alternatives --display mta
mta - status is manual.
link currently points to /usr/bin/msmtp
/usr/bin/msmtp - priority 110
slave mta-pam: (null)
slave mta-mailq: (null)
slave mta-newaliases: /bin/true
slave mta-rmail: (null)
slave mta-sendmail: /usr/bin/msmtp
slave mta-mailqman: (null)
slave mta-newaliasesman: (null)
slave mta-aliasesman: (null)
slave mta-sendmailman: /usr/share/man/man1/msmtp.1.gz
Current `best' version is /usr/bin/msmtp.
[root@a10-52-52-117 ~]# /usr/sbin/update-alternatives --set mta /usr/bin/msmtp
[root@a10-52-52-117 ~]# ll /usr/lib/sendmail /usr/bin/newaliases  /usr/sbin/sendmail
lrwxrwxrwx. 1 root root 32 Apr  9 15:51 /usr/bin/newaliases -> /etc/alternatives/mta-newaliases
lrwxrwxrwx. 1 root root 30 Apr  9 15:51 /usr/lib/sendmail -> /etc/alternatives/mta-sendmail
lrwxrwxrwx. 1 root root 21 Apr  9 15:51 /usr/sbin/sendmail -> /etc/alternatives/mta

 

[squorpeeon]

Hello squorpeeon,

I was able to reproduce the issue and reported it with ID: PPPM-2732
The root cause is missing sendmail links during installation. You can workaround it running: # /usr/sbin/update-alternatives --set mta /usr/bin/msmtp

Thanks. Your workaround works great.

 

[prateekvarma]

On using the above code by RuslanT, i get the following error (i'm using ubuntu 14.04)
-bash: /usr/sbin/update-alternatives: No such file or directory

 

[IgorG]

/usr/sbin/update-alternatives is symlink to /usr/bin/update-alternatives files and it is part of dpkg package:

# ls -la /usr/sbin/update-alternatives
lrwxrwxrwx 1 root root 26 Nov 10 2011 /usr/sbin/update-alternatives -> ../bin/update-alternatives

Check that this package is correctly installed and symlink exists.

 

[prateekvarma]

It's really shame that a large company like yours can't even preinstall something like an external SMTP. if you can't do such a small job, i can't trust you with bigger jobs.