[CentOS] Does SMTP Connection Drop When Posfix Reload is Issued ?

m.roth at 5-cent.us m.roth at 5-cent.us
Wed Apr 25 16:00:19 UTC 2012


John Doe wrote:
> From: Prabhpal S. Mavi <prabhpal at digital-infotech.net>
>
>> i implemented something that when our smart host would become
>> blacklisted.
>> It will automatic switch to next available smart host (which is ready
>> sitting). that mean it will start relaying message through another smart
>> host automatically.
>
> Why not find out why you get blacklisted instead of trying to bypass it?
> You seem to imply that it is something that will happen and often...

It happens. It's certainly happened to me. When you're a hosting co (like
the host I use), and have tens or hundreds of thousands of clients with
many domains, and some are businesses or organizations that legitimately
send out mass emailings, you're trying to catch the idiot whose machine
got infected, it was uploaded to their hosted site, and voila, spam going
out of your domain. *AND* the blacklisters *insist* on blocking the
*entire* address range assigned to the hosting co, rather than the source
IP.

        mark




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