I have this in my acl_check_rcpt section

  drop  message   = "Unknown user"
       condition = ${lookup{${lc:[EMAIL PROTECTED] dbm {/etc/mail/users.db} 
{false}{true} }
       domains = +relay_to_domains


Which rejects messages that are directed to users that do not exist on my 
system.

However if a message is sent to such an "Unknown User" with a BCC or CC to a 
legitimate
user (eg to [EMAIL PROTECTED] doesnt exist, and cc to [EMAIL PROTECTED] does 
exist) then the legitimate user still receives the message, which is what I 
want.

But

If messagelabs.com are sending me a message to several of my users, as soon as 
they get a "Unknown User" rejection then they drop the connection and dont try 
to send the message to my legitimate users.

is there something wrong with my acl? should I change it? or is it messagelabs?


thanks,

Oliver


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Oliver Howe
Senior Systems Administrator

Tel: +44 (0) 79 7420 6484
Fax: +44 (0) 20 7664 7878

Spider Networks - the power behind interactive web communications - 
www.spider-networks.net


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