Subject: Re: sendmail fails to deliver mail with attachments in /var/spool/mqueue

[email protected] (Jeff V. Merkey) writes:

>We got to the bottom of the sendmail problem. The line:

> -O QueueLA=20


> -O RefuseLA=18

>Need to be cranked up in to something high since the
>background VM on a very busy Linux box seems to exceed this which causes
>large emails to get stuck in the /var/spool/mqueue directory for long
>periods of time. Since vger is getting hammered with FTP all the time,
>and is rarely idle. This also explains what Richard was seeing with VM
>thrashing in a box with low memory.

So what? This is written in the documentation of the program? You do read
documentation, do you?

>The problem of dropping connections on 2.4 was related to the O RefuseLA
>settings. The defaults in the RedHat, Suse, and OpenLinux RPMs are
>clearly set too low for modern Linux kernels. You may want them cranked
>up to 100 or something if you want sendmail to always work.

These settings are for single user / small user numbers boxes.

If you're using an out of the vendor box distribution configuration
for a high traffic server, you're nuts. Or ignorant. Or dumb. Or your
consultant is an idiot.


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