Problems with inbound mail queue

[Scott Silva]

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Joost Waversveld spake the following on 8/29/2005 5:01 AM:
>>If you stop the incoming sendmail listener process, does the number
>>stay at 239? or does it gradually drop? If it stays the same then
>>something is wrong. If it slowly drops then you just had a lot of
>>messages being delivered to you at the same time, which is fine.
> 
> 
> On our situation, the emails are being processed, but they are still
> standing in the mqueue.in/ directory... I just checked the setting "Lock Type",
> and it was not set to posix, so I just changed that. I have to check if that
> works....
> 
> One strange thing, at the office we are also running Mailscanner. This machine
> is Fedora Core 4, which has a newer sendmail deamon (In the 8.13-range). Here
> also the "Lock Type" was set to the default (flock), but here we were not
> having these problems.....
> 
I think the problem only occurs when sendmail and MailScanner have a
tussle over the same file. If the sendmail process is finished before
the MailScanner process tries to access the file, there is no
contention, and no locking problem.
But sooner or later, there will be a contention problem, and the newer
sendmail will choke itself.

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