What spammers typically do is connect to the SMTP server, flood their data
to SMTP then close the connection after sending the "." (they don't wait for
the 250 OK from SMTPD). Since STMPD can not give the client a 250 OK the
message has not been accepted for delivery and is not delivered (a proper
client will resend the message later since it didn't get the 250 OK). In
this case it is left in the spool as a T and D file. We are looking into
why SMTPD does not clean up the T and D file.
Tripp
----- Original Message -----
From: "Kevin Rogers" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Thursday, April 20, 2006 10:37 PM
Subject: [IMail Forum] Stuck in Spool
We use an external company (Myriad Networks -
http://www.myriadnetwork.com) to take over our mail delivery in the event
our server is down. It is used as our secondary MX record. The problem
we are having is that many of the messages sent from Myriad to our Imail
server get stuck in the spool. We don't have this problem with any other
domain. There are hundreds of A, D and T files in the spool. They are
all sent from Myriad. Most (if not all) are spam, but I'd still like to
figure out why these messages are not being delivered. Has anyone
experienced anything similar with an external company handling secondary
mail delivery?
All the messages are received within a minute or two of each other (there
are perhaps 10 of these groups where 40 messages are delivered at the same
time - for example 40 messages at 7:38am, 40 at 11:32am, etc). The logs
for these deliveries all stop at "performing antispam checks". In the
declude log, the message are uniformly HELD. Does that mean they are just
left in the spool?
Imail 8.21, Win2000
Thanks
Kevin
To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html
List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/
Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html
List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/
Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
