Re: Spam in Mail Queue
- From: "Rich Matheisen [MVP]" <richnews@xxxxxxxxxxxxxxxxxxxxx>
- Date: Sun, 11 Nov 2007 21:23:42 -0500
Andel <Andel@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
I have an SBS 2003 Server with Exchange. I have queues that are trying to
send spam. Because my server is not open relay they sit and sit in the
queue. How can I stop spam even entering my queue? All the logs suggest
they're spam aimed at non-existant users within the company but its not
returning them... They are not NDRs though - they seem to just be stuck.
So - my questions:
1) How can I prevent it from sitting in the queue?
You cannot. Messages that are addressed to domains that don't accept
email will just sit there until they expire.
2) How can I ensure my server is cloaked?
"Cloaked"? Port 25's gotta be open if you want people to send you
email. Unless you accept email from only a very small number of IP
addresses this is not going to work.
3) What other sources could be trying to send the spam?
Well, just about every unprotected, always-on, home computer is a
source of spam.
Many thanks for any help,
To prevent your server from accepting email that it can't deliver,
enable "Recipient filtering" at the global level (check the box that
says "Filter recipients who are not in the directory". Then enable
recipient filtering on the SMTP Virtual Server.
You should be able to use the IMF, too. It may work well for you (or
not).
Because this is SBS there may be some way they insist you do this
other than by using the Exchange System Manager. The results shold be
the same, but getting there may be different in SBS with its "wizard"
focus.
--
Rich Matheisen
MCSE+I, Exchange MVP
MS Exchange FAQ at http://www.swinc.com/resource/exch_faq.htm
Don't send mail to this address mailto:h.pott@xxxxxxxxxxxxx
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.
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