qmail queue messages stuck

[OutKa5t]

Hi, can anyone help.

I have a random number of messages that get stuck in the qmail queue. Most messages get sent fine but some don't.

There doesnt appear to be any simularity in the mails that get stuck or the addresses they are being sent to.

I have tried cleaing the queue and also restarting qmail but it doesnt sem to help.

Users arent getting any returned email until qmail gives up, then a return comes back with

Sorry, I wasn't able to establish an SMTP connection. (#4.4.1)
I'm not going to try again; this message has been in the queue too long.

...sometimes. There is mail in the queue over 3 weeks old for some reason.

 

[JLChafardet]

i have had a similar problem, some days email just decide to not go delivered.

what i do is restart the whole plesk service (as restarting courier-imap or qmail doesnt do the trick) and use qmhandle
http://qmhandle.sourceforge.net/

and queue-repair
http://pyropus.ca/software/queue-repair/

and the mails start to get delivered.

 

[fishnyc22]

How do I restart the entire plesk service? Is there a command for that?

 

[JLChafardet]

service psa stopall;sleep 3;service psa start

i usually run that "when" i need to restart the full psa related services.

 

[fishnyc22]

Thanks. thats a good command to know. I ran it, but it seems that these 2 emails just don't want to go out. I know for a fact the email address works.

Can you guys think of any other reason why these certain domains get stuck?