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Re: MTA comparison (postfix, exim4, ...)

> 1. it doesn't seem to have as many anti-spam possibilities as Exim -
> there's postgrey for greylisting, but how can I tarpit RBL matches and
> other offences?

Look at policyd-weight, for example.

> 2. when an email that I'm forwarding (due to /etc/aliases or a
> .forward or whatever) comes in, can I start trying to send it straight
> out and SMTP-reject it if the remote host doesn't want it?  My only
> production postfix server generates some blowback from joe-jobs if
> users forward mail to a more restrictive host, which I think is a
> serious problem.

Definiteyl not a feature I'm missing. I hope exim caches the reply from
the final MX for some time, otherwise this sounds like a good way to run
a DOS attack.

Bernd Zeimetz
<bernd@bzed.de>                         <http://bzed.de/>

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