Hi all I'm running Exim 4.6 and MailScanner 4.64.3 which requires 2 instances of Exim to be running - one for incoming mail and the other for outgoing mail.
The problem is, I can't get Exim's verify recipient functionality working, even though my exim.conf specifies it. The reason I would like this to work is that my server relays for one domain in particular that is getting thousands of dictionary based spam messages (tens of thousands per day). My server relays to their smtp server after checking for spam and viruses using MailScanner and SpamAssassin. The public DNS for the domain points to my server as the MX and my server's DNS has an MX of their SMTP server. Their server sends their outbound mail via mine so it gets scanned. The domain is in my /etc/virtual/relay_domains file and the IP of their mail server is in my /etc/virtual/relay_hosts file. Has anyone any ideas? I've spent hours banging my head against a brick wall on this one. What I expect to happen is for exim to contact the remote smtp server to validate the address as soon as it gets the "rcpt to" command and then issue an "unknown user" response if the remote smtp server rejects it. What is happening instead is that the messages are being accepted, scanned by MailScanner and passed to the remote smtp server which rejects them. This is a real waste of resources. One theory I have is that because there's an inbound and outbound instance of exim to allow it to work with MailScanner then the verify recipient functionality is effectively disabled, but I'm clutching at straws here. All advice very much appreciated. The /etc/exim.conf which is the instance of exim used for inbound mail has these settings: # accept if address is in a local domain as long as recipient can be verified accept domains = +local_domains endpass message = unknown user verify = recipient # accept if address is in a domain for which we relay as long as recipient # can be verified accept domains = +relay_domains endpass message = unknown user verify = recipient accept hosts = +relay_hosts endpass message = unknown user verify = recipient accept hosts = +auth_relay_hosts -- ## List details at http://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
