Check the Authentication box, but ALSO check the hosts and clients with
these IP addresses. Don't add any IP addresses unless you need to.
Something about how the IMS implements the logic for determining if you are
allowed to relay causes the 550 relaying prohibited errors for normal
inbound mail unless you have them both selected.
-----Original Message-----
From: Jeremy Pinquist [mailto:[EMAIL PROTECTED]]
Sent: Thursday, August 09, 2001 10:47 AM
To: Exchange Discussions
Subject: RE: POP and Relaying
That's the exact problem -
I did follow the exchange admin article line by line - it seems like the
authentication box would provide the best solution. yet when i check off the
authentication box, messages sent to my email address -
[EMAIL PROTECTED] is bounced as a 550: Relaying Prohibited from a test
account atyahoo.com - this doesn't seem to make sense, considering i
(obviously) have juilliard.edu set to <inbound> in the relaying table.
1 question tangential to this - is the order that domains are listed in that
routing table important? I have a redirect for an old domain name
(exchange.juilliard.edu) re-routing to juilliard.edu as the first entry, and
then juilliard.edu routed to <inbound> as the second entry in the table.
should this be reversed, and might it have something to do with the relaying
denied error?
> -----Original Message-----
> From: Tom Meunier [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, August 09, 2001 10:50 AM
> To: Exchange Discussions
> Subject: RE: POP and Relaying
>
>
> That isn't your relaying restriction that's doing that. Sounds like
> you're also denying anyone from even CONNECTING to your SMTP server
> unless they authenticate, which isn't what you want to do. Other than
> that, authenticate only will work just fine for what you're doing.
>
> -----Original Message-----
> From: Jeremy Pinquist [mailto:[EMAIL PROTECTED]]
> Posted At: Thursday, August 09, 2001 9:36 AM
> Posted To: MSExchange Mailing List
> Conversation: POP and Relaying
> Subject: POP and Relaying
>
>
> I know that this topic has been discussed on the list before, but
> swynk's
> search engine is crapping out this morning.
> OK, I've been able to prevent relaying on my machine by checking off
> "hosts
> and clients with these IP addresses" with no entrys in the
> table, and it
> worked, but my site has a significant number of external POP
> users. Can
> some
> admins out there point out some solutions for providing SMTP to pop
> users
> external to the site that have dynamic IPs while still blocking
> relaying?
> "Authentication only" in the relaying tab of IMC is
> unacceptible, since
> when
> i tried it, for some reason, Exchange was blocking all incoming mail
> from
> outside (yahoo, hotmail etc.)
> I'm on 5.5 SP4.
>
> Gracias in advance,
> Jeremy
>
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