Will,
Do you have any catch-all (nobody) aliases for any of your domains? If
so, a single such domain can overwhelm a server when under dictionary
attack. Catch-alls must be removed. The traffic will disappear
immediately if this is the case.
Also, it is definitely not uncommon for a business like yours to have
clients using your server for bulk-mailing. You should set reasonable
recipient limits per message (like 50 or so) and watch for people that
have automated software that sends out even more.
Looping can cause issues like this as well.
Lastly, you may need to tweak your Declude.cfg settings in order to
handle the normal traffic that you see. It seems that a lot of the
higher volume servers backup when using the default settings, so this
effect may be different from what you were seeing in the past. Maybe
you could share your normal and peak volume along with your Declude.cfg
settings with the list and get some feedback.
Matt
Will wrote:
I have had a problem with my Imail server backlogging mail for years now
where the spool directory will fill with hundreds of thousands of
messages. Now it's the proc folder with the new version of declude.
This issue has been ongoing throughout the years as I have upgraded both
Imail and Declude. It has come to the point where I have to purge
500,000 messages to get my mail server running again.
I'm not sure what to do, as I need the virus and spam protection.
Is there a way to block all mail from Romania and china?
Will
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