Doug Traylor ([EMAIL PROTECTED]) wrote:
> Why not use DNS for delivery in Vexira instead of setting a "destination
> smtp server"?  Is that not possible in Vexira?  Since it runs on a different
> machine than your mail server qmail, you could point all the domains you
> manage to your qmail's local IP using local DNS settings to manage incoming
> external email and it would deliver non-local email via DNS to the Internet
> for outgoing email.

AFAIK Vexira doesn't use DNS (I guess you mean MX records?) to deliver mail,
even if it could, it wouldn't work because Vexira would still receive both
locally originated and external originated mail from the same connecting IP
(ASSP's, which is localhost) - this makes it impossible for Vexira to
distinguish between legitimate local originated mail on its way to the
Internet, and a spammer trying to use Vexira as an open relay.

> This will work to skip Vexira for local-local mail, but I use ASSP to block
> attachments coming from the Internet that I do not want to block for
> local-local mail so it still would not work for me.  Plus, we do a lot of
> internal mail, sometimes with largish attachments, so I don't want my server
> wasting time passing all that traffic through ASSP too.
>
> The most efficient plan is to restrict internal mail to just the client and
> the MTA and have multiple layers of protection for email coming in from the
> Internet.
>
> Doug Traylor

Well, thanx Doug, this conversation has given me two new possibilities to try
- there's hope yet!

Can I assume that if you've got the Relay Host and Relay Port set in ASSP,
only mail received by ASSP on Relay Port will be forwarded to Relay Host, and
only mail received by ASSP on Listen Port will be forwarded to SMTP
Destination?  Can I further assume that mail received by ASSP on Relay Port
will be used for auto-whitelisting purposes?

Francois.


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