No the problem is not a relay. It works as follows. 1. Jimmy at Yahoo sends mail to Someone@ Our Server 2. Someone's mailbox is full 3. Postmaster returns message to Jimmy saying Mailbox full
So we have a lot of outbound postmaster messages in the queue, from the postmaster outbound. Our relay system is turned off to not allow any relaying. Jeremy ----- Original Message ----- From: "John Tolmachoff" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, November 29, 2001 8:00 AM Subject: RE: [IMail Forum] A Few General Questions If you are seeing a lot of postmaster messages like the ones you describe, I think you have more to worry about than a full postmaster box. Sounds like you have an open relay being used by spammers. If you do disable receiving messages to postmaster, then you are not in compliance with the RFC's. Although, by being an open relay, you will be blacklisted. John Tolmachoff, Network Engineer 211 E. Imperial Hwy., Suite 106 Fullerton, CA 92835 714-578-7999, ext. 104 [EMAIL PROTECTED] [EMAIL PROTECTED] www.reliancesoft.com -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Jeremy Krall Sent: Wednesday, November 28, 2001 2:44 PM To: [EMAIL PROTECTED] Subject: [IMail Forum] A Few General Questions I was hoping for some help on a few general items: 1. If I am running IMAP on one machine and SMTP on another machine is there any reason why I would need to run SMTP on the IMAP machine as well? Additionally, what would be the most secure setup for SMTP on that machine if I do need it running. 2. Is there any way to disable the postmaster messages? We currently have over 500K users and we generate a lot of mailboxes full, invalid user, etc and thus the spool fills up with tons ofoutbound postmaster messages which are bouncing back to spammers with invalid To addresses. Is there any way to disable the postmaster responses? I don't think the spammers who are trying this really care if they get a postmaster response or not. Thanks in advance, Jeremy Please visit http://www.ipswitch.com/support/mailing-lists.html to be removed from this list. An Archive of this list is available at: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Please visit http://www.ipswitch.com/support/mailing-lists.html to be removed from this list. An Archive of this list is available at: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Please visit http://www.ipswitch.com/support/mailing-lists.html to be removed from this list. An Archive of this list is available at: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/
