> Hi. I would kindly appreciate some help diagnosing a problem that's been
> going on for some time now. We have version 8.15 of Imail Server and
> having problems delivering some mail messages. We are seeing many
> messages in the log like these:
First off, I have to say this: if you want the fastest help, don't
hijack threads with other topics!
But, anyway... there isn't much "diagnosis" that you need to do -- the
logs have done the diagnosis for you. Your IP 209.237.50.61 is on a
number of significant blacklists:
http://www.dnsstuff.com/tools/ip4r.ch?ip=209.237.50.61
All of the blacklists mention that you spam has been sent from that
server recently and repeatedly.
Who's doing it? Scan your logs for users sending aberrant numbers of
messages. Check off-hours logins that may point to hijacked accounts /
find non-matching authenticated user + subsequent MAIL FROM / any MAIL
FROMs from non-local domains.
--Sandy
------------------------------------
Sanford Whiteman, Chief Technologist
Broadleaf Systems, a division of
Cypress Integrated Systems, Inc.
e-mail: [EMAIL PROTECTED]
SpamAssassin plugs into Declude!
http://www.imprimia.com/products/software/freeutils/SPAMC32/download/release/
Defuse Dictionary Attacks: Turn Exchange or IMail mailboxes into IMail Aliases!
http://www.imprimia.com/products/software/freeutils/exchange2aliases/download/release/
http://www.imprimia.com/products/software/freeutils/ldap2aliases/download/release/
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