Hello, Our mail server is running CentOS 5.3. I configured postfix with maildrop as the MDA. I had to deal with a strange issue : a user sent an email to an alias, which resolves into several internal addresses. One of these addresses had its mbox filled up (reached the mailbox_size_limit); so maildrop reported a 0x19 error code to postfix, who kept the mail in its queue, and repeatedly resent the email : thus every member of the alias list received many copies of this email, except of course the one with the filled mbox. Is there a way to configure postfix so that it does not resend the email to the recipients who do not report any error ? Regards --- Robert GRASSO – System engineer CEDRAT S.A. 15 Chemin de Malacher - Inovallée - 38246 MEYLAN cedex - FRANCE Phone: +33 (0)4 76 90 50 45 - Fax: +33 (0)4 56 38 08 30 mailto:robert.grasso at cedrat.com - http://www.cedrat.com