Mail Not Routing, stuck in /var/spool/mqueue.in

Wed Sep 3 20:26:18 IST 2003

Whenever you say "queue" on this list, you should stop and remember to write
either "incoming queue" or "outbound queue" instead.  Do you mean you have
2000 messages in the incoming queue?  If so, then yes MailScanner still has
to work on them, but if you mean that you have 2000 in the outgoing queue,
then MailScanner is already completely out of the  picture for those
messages.

Mail in the outbound queue is entirely handled by your MTA.  If you are
seeing backlogs there, then you need to figure out whether it's normal or a
real problem.  If you have mail sitting in the outbound queue destined for
domains you do not control, then that may very well be normal -- mail gets
defered when servers are down, DNS has problems, etc.  If the mail stuck in
the queue is destined for a domain you control, then you need to figure out
why it's not going out immediately.

If you are using sendmail and you want to process just those messages in the
outbound queue that are destined for your domain, then instead of sendmail
-q, use sendmail -qRyourdomain.com.  That will process only those messages
with "yourdomain.com" in the recipient line of the message.  Note that if
you aren't splitting messages into one-per-recipient then this may still
include messages bound for other domains (ie you have a message with two
recipients, one local, one remote) and may therefore take a while.

You can see what a sendmail process is doing at any given time - just look
at it's process listing in the long output format of ps.  The only tedious
part is identifying the sendmail process you're interested in.  If you're
using -qR you can look for that...

ps auxww | grep 'sendmail -qR'

-----Original Message-----
From: lester lasad [mailto:llasad1 at YAHOO.COM]
Sent: Wednesday, September 03, 2003 3:30 AM
To: MAILSCANNER at JISCMAIL.AC.UK
Subject: Re: Mail Not Routing, stuck in /var/spool/mqueue.in

This is for incoming mail. On average I receive 15-20 thousand incoming
emails a day.  Right now I have roughly 2000 messages in the queue, so MS
has been routing mail but it is very slow.  Doesn't seem to want to catch
up.

"Spicer, Kevin" <Kevin.Spicer at BMRB.CO.UK> wrote:

Can you confirm whether email had completely stopped, or whether MailScanner
just wasn't keeping up with the queue?

If you want to bypass MailScanner to clear the backlog... (assuming RedHat
syntax)

service MailScanner stop              [wait for all MailScanner processes to
disappear after running this before moving on]
mv /var/spool/mqueue.in/* /var/spool/mqueue
service MailScanner start              [restart Mailscanner toprocess any
newly arriving messages, see if it copes]
sendmail -q

[this last command will take a very long time to complete as it will attempt
to deliver each mesasge in the queue, with your backlog this could be a
considerable period of time]

-----Original Message-----
From: lester lasad [mailto:llasad1 at YAHOO.COM]
Sent: 03 September 2003 08:59
To: MAILSCANNER at JISCMAIL.AC.UK
Subject: Re: Mail Not Routing, stuck in /var/spool/mqueue.in

Kevin,
To be honest all I have ever used is mailscanner, I am not famaliar with
configuring sendmail on it's own.  I have been at this all night with no
luck.  I have restarted MS many times with minimal success.  I have tried
changing my routing table to route to a different internal server to verify
it's not a problem with the host I normally connect with and have the same
problems.  This is very frustrating, I've got about 2000 message still stuck
in the queue, they are getting delivered but at a very slow rate.  Users
don't like to see email from customers that are 2 days late.  If you have
any more suggestions, I'd appreciate it.

"Spicer, Kevin" <Kevin.Spicer at BMRB.CO.UK> wrote:

lester lasad wrote:
> Kevin,
> I took your suggestion and all new mail seems to be coming in OK, the
> problem is that I copied one of the emails out of mqueue.in into
> mqueue but it does not route. It's just stuck, all other new mail
> that comes in routes with no problems. any suggestions?

Do you have both df and qf files for that? Maybe the mail itself is what has
caused your problem?

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