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Canceling a sendmail message from the queue

Posted on 1998-09-07
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Last Modified: 2013-12-26
Hello,
 Whats the official way of canceling a message in a sendmail queue? I have a system that spends most of its time not connected to the internet and then connects periodically to exchange mail. More than once I have needed to cancel a message in the sendmail queue, I usually do this by deleting the three files in the queue, but occasionally the message as gone anyway. Is there a sendmail command that I can use which will properly cancel the message (even if its begun to try and send it - ie mailq shows a * next to the message)

Thanks in advance,
Nicholas Waltham
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Question by:nwaltham
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blowfish earned 50 total points
ID: 1293115
If you need to do any "queue maintenance", then the first thing that you should do is stop any currently running sendmail processes.  The easiest way I know of to do that is to run the sendmail script with a stop argument.  For Solaris that would be;

    /etc/init.d/sendmail stop

and for Linux (RedHat) that would be;

    /etc/rc.d/init.d/sendmail stop

Once you have stopped all running sendmail processes, you can delete a queued message by removing all of it's related queue files.  I actually prefer to move the selected queue files into a temporary directory.  But if all you want to do is delete them, the following will work (assuming a queue id of MAA12345);

    cd /var/spool/mqueue
    rm ?fMAA12345

There is no sendmail command that will remove queue files for you, you must remove them from the queue yourself.  

Cheers,

--frankf

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