On Wed, 07 Apr 1999 22:05:05 -0700, you wrote:
>If I am not mistaken, the explanation is that many (specifically theirs
>in this case) do an auth prior to sending mail (my firewall was dropping
>them with logging).
Yes, this is the explanation.
>They suggested that I send a service unavailable
>reply to speed up email delivery as the default action on their mail
>servers is to time out on the auth then deliver mail.
auth requests should either be actively rejected or be answered by a
configurable identd. I use oidentd for this.
If you don't want to run an identd, I'd actively reject auth requests
from the hosts that you know for sending legitimate auth requests
(such as your ISPs mail server) and deny+log for other hosts.
>As an aside, (perhaps you can respond directly rather than clutter the
>postings with what I presume to be a periferal question) I am interested
>in what I am guessing is your ISP's mechanism for storing undeliverable
>messages: using a a pop server. How do you transfer these into your
>(smpt?) mail exchange for delivery?
the canonical way to get mail delivered to a POP mailbox back into
SMTP processing is to use fetchmail. However, the message's envelope
is lost once it is delivered to the POP mailbox so you will have some
difficulties to deliver the messages correctly if you get all your
mail delivered to a single mailbox.
I'd try to coax my ISP into using an ETRN setup instead.
Greetings
Marc
--
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Marc Haber | " Questions are the | Mailadresse im Header
Karlsruhe, Germany | Beginning of Wisdom " | Fon: *49 721 966 32 15
Nordisch by Nature | Lt. Worf, TNG "Rightful Heir" | Fax: *49 721 966 31 29
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