Load Balancing with Postfix [and SpamAssassin]

Corey Edwards tensai at zmonkey.org
Fri Jan 20 13:20:28 MST 2006

On Fri, 2006-01-20 at 13:09 -0700, Michael L Torrie wrote:
> I'm not sure you can gray list on a per-user basis.  Usually such
> filters work during the HELO stage of the smtp exchange.  If you did it
> after the RCPT TO: stage, I believe the message would bounce
> immediately, which is not what you want.
> This this is not the case, then I am even that much happier.

A 4XX response to RCPT will prompt a retry. I've heard that some older
versions of Groupwise treat 4XX as permanent errors, but that's just
retarded. Otherwise it should work fine.


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