I began experiencing a problem recently due to the spammers.
It seems I routinely receive e-mails going to addresses beginning with + (e.g.
[EMAIL PROTECTED]). This e-mail should get rejected as undeliverable..
however, it gets stuck in my sendmail queue.
Normally this wouldn't be a problem. However, I've noticed that when other
(valid) e-mails get queued up for delivery, they will NEVER be delivered.
Sendmail routinely tries to resend messages in the queue - but it seems that
after it tries to deliver the [EMAIL PROTECTED] e-mail, lmtp will fail for all
the other (valid) messages.
I'm continuing to search the archives, but I'm coming up empty handed so far.
I'm running RHEL4 with their prepackaged 8.13.1 and Cyrus v2.2.12
An example of what I am seeing:
[EMAIL PROTECTED] mqueue]# mailq
/var/spool/mqueue (3 requests)
-----Q-ID----- --Size-- -----Q-Time----- ------------Sender/Recipient-----------
l1FG7RYj000641 28 Thu Feb 15 11:07 <>
(reply: read error from localhost)
[EMAIL PROTECTED]
l1FG7RYj000642 28 Thu Feb 15 11:07 <>
[EMAIL PROTECTED] ßvalid mailbox
l1FG9FCE000790 17 Thu Feb 15 11:09 <>
(reply: read error from localhost)
<[EMAIL PROTECTED]>
Total requests: 3
[EMAIL PROTECTED] mqueue]# sendmail -qf -v
Running /var/spool/mqueue/l1FG7RYj000641 (sequence 1 of 3)
[EMAIL PROTECTED] Connecting to /var/lib/imap/socket/lmtp via cyrusv2...
220 hawkmail.monmouth.edu LMTP Cyrus v2.2.12-Invoca-RPM-2.2.12-3.RHEL4.1 ready
>>> LHLO hawkmail.monmouth.edu
250-hawkmail.monmouth.edu
250-8BITMIME
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-SIZE
250-AUTH EXTERNAL
250 IGNOREQUOTA
>>> MAIL From:<> SIZE=357
250 2.1.0 ok
>>> RCPT To:<+._-fairbao>
>>> DATA
[EMAIL PROTECTED] Deferred
Running /var/spool/mqueue/l1FG7RYj000642 (sequence 2 of 3)
[EMAIL PROTECTED] Deferred: Connection reset by localhost
Running /var/spool/mqueue/l1FG9FCE000790 (sequence 3 of 3)
<[EMAIL PROTECTED]>... Deferred: Connection reset by localhost
Closing connection to localhost
[EMAIL PROTECTED] mqueue]# mailq
/var/spool/mqueue (3 requests)
-----Q-ID----- --Size-- -----Q-Time----- ------------Sender/Recipient-----------
l1FG7RYj000641 28 Thu Feb 15 11:07 <>
(reply: read error from localhost)
[EMAIL PROTECTED]
l1FG7RYj000642 28 Thu Feb 15 11:07 <>
(Deferred: Connection reset by localhost)
[EMAIL PROTECTED]
l1FG9FCE000790 17 Thu Feb 15 11:09 <>
(Deferred: Connection reset by localhost)
<[EMAIL PROTECTED]>
Total requests: 3
----
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