Date:  Mon, 7 Aug 2006 12:30:26 +0100
From:  "Connexions Web Solutions" <Administration (at mark) cnx-solutions.com>
Subject:  [coba-e:06228] POP3 BOX STOPS RESPONDING
To:  coba-e (at mark) bluequartz.org
Message-Id:  <44D73262.29118.5CADF3@localhost>
X-Mail-Count: 06228

Hi,

I have a new very fast box with CentOS latest & BQ. It has about two 
hundred mail.domain.com on it, with an average of five users per 
.com.

It intermittently locks up on users email, when they get 
authentication failure, and cannot login using webmail. Yet oddly the 
admin POP3 mailbox never stops responding, nor webmail for the 
admin box. Its not a DNS issue because I am using IP to overcome 
that.

It appears to be in some way linked to mail checking programmes 
like magic mail monitor, which when started may send forty or fifty 
parallel requests to check mailboxes, all on the same IP.

Does anyone have a similar problem ?

What I find odd is that it only effects users mail boxes, never the 
server admin mail box, even though that is being checked with the 
same mail monitor programme.

Is there a maximum number of connections on sendmail that I can 
increase ?

Any help appreciated.

Rgds.