email time out error

[zum]

I'm using Sendmail on Freebsd 5.4.

Lately we have been getting Deferred: Operation timed out errors. I noticed in the maillog this occurs only with dsn=4.0.0. Everything with dsn=2.0.0 get sent fine.

Also, what does the "dsn" mean?

For example:


, delay=2+00:27:02, xdelay=00:01:15, mailer=esmtp, pri=9061125, relay=dpweb.group.com. [62.5.175.90], dsn=4.0.0, stat=Deferred: Operation timed out with dpweb.group.com.

(1034/1034), delay=00:00:00, xdelay=00:00:00, mailer=prog, pri=33755, dsn=2.0.0, stat=Sent


Thanks!

 

[RhythmAce]

In short dsn is an enhanced error code system. I stands for Delivery Status Notification. Here is a breif table of what the codes mean:

Section 10   DSN code         Meaning
200           2.0.0        Unknown success (probably OK)
400           4.0.0        Unknown persistent temporary failure (probably
OK)
403           4.5.1        Protocol error (5), invalid command (1)
415           4.6.1        Message/Media error (6), media not supported (1)
426           4.7.8        Security error (7), TLS required (proposed as 8)
481           4.4.2        Network error (4), excessive dropouts? (2, or new
code)
506           5.4.8        Network error (4), connection exists (proposed as
8)

I don't have enough info to help with the timeout issue.

 

[zum]

Well that's nice to know. Thanks.