[Mailman-Users] stat deferred and connection reset

[Barry Finkel]

Vikram Goyal" <tech at craftbits.com> wrote:

>Hello,
>
>I have created a mailing list using Mailman version 2.1.8 and Sendmail 
>version 8.12 as the MTA on a Fedora 2 box. After creation of the list, I 
>sent out a message to all the members (< 30000). Some messages were 
>received, but most it seems were not. In the sendmail log the following 
>entry was found repeated several times:
>
>May  7 05:07:16 ip-68-178-242-231 sendmail[12991]: k474oTaH027069: 
>to=<Several Emails>, delay=06:48:40, xdelay=00:00:00, mailer=relay, 
>pri=15687906, relay=someserver.net, dsn=4.0.0, stat=Deferred: Connection 
>reset by someserver.net
>
>The last two sections bother me. Are the messages only deferred for a little 
>time and will be resent? Why is the connection reset by someserver.net?
>Do I need to resend the message?
>
>Normal emails are going through without any problem. I am on a dedicated 
>box, and the someserver.net is the smtp out box for the hosting company.
>
>I have searched a fair bit and can't figure it out, so any help is 
>appreciated.

The message from sendmail in the syslog:

     relay=someserver.net, dsn=4.0.0, 
     stat=Deferred: Connection reset by someserver.net

states that while sendmail was talking over SMTP to 

     someserver.net

that server reset the connection.  As a result, sendmail has re-queued
the message, and it will retry the connection at whatever time
interval has been set in the sendmail.cf (or submit.cf) file.
----------------------------------------------------------------------
Barry S. Finkel
Computing and Information Systems Division
Argonne National Laboratory          Phone:    +1 (630) 252-7277
9700 South Cass Avenue               Facsimile:+1 (630) 252-4601
Building 222, Room D209              Internet: BSFinkel at anl.gov
Argonne, IL   60439-4828             IBMMAIL:  I1004994