[Mailman-Users] Mailman is failing to send mails to a list cantaining more than 80 mail-ids

[Manthra]

Hi,

Please help me.

We have Mailman with Postfix (Virtual)  running successfuly with small
mailing lists(i.e. Having less than just 80 mail-ids in the lists).  But if
the size of the mailinglist goes beyond 80 mail-ids, it is failing to send
mails.

We have  tried setting up  the option "Ceiling on acceptable number of
recipients for a posting"
<http://ex1.com/cgi-bin/mailman/admin/list10/?VARHELP=privacy/recipient/max_num_recipients>
to 400,  but  no use.

We are getting the following error in the log file
/var/lib/mailman/logs/smtp-failure         (only when list size crosses 80
email-ids)

Jan 13 11:47:18 2011 (27459) delivery to manthra.24 at gmail.com failed with
code -1: Server not connected
................................
.............................
Same error for all the email-ids in the list

Please help me to resolve this

Thanks,
Manthra