[Mailman-Users] stat deferred and connection reset

[Vikram Goyal]

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.

Regards,
Vikram Goyal