> For some reason some of his clients use his Imail SMTP server. For some reason? Because they're his clients!
> Some SMTP servers perform reverse lookup for host names, and if a > retrieved host name and HELO's one doesn't match, mail is rejected Show me a server so configured that deserves to have my mail, and I'll eat my hat. > My only mistake was I didn't mentioned that you have to create a > virtual host (imail.earthlink.net) with exactly the same name as the > host name (imail.earthlink.net). Hey, look: mine is a very simple and strong argument. You run a hosting service. You have, say, 100 virtual domains. (BTW, many, if not most, people already have an Imail host with the same name as the local machine, so it's no great advance to suggest this.) Making hosting clients, who might each have 100's of users, authenticate to a *separate* host is just not an answer, as it basically undermines the fundamental concepts of virtual hosting! You'd be crazy to try to run a business that way. In the end, the PTR-matches-HELO is not even something worth worrying about, as it's an obvious misconfiguration on the remote end. My backlash at your solution is largely due to your continued assumption that Andrey didn't understand PTRs (he certainly did, and already had all that was necessary). -Sandy 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 the Knowledge Base for answers to frequently asked questions: http://www.ipswitch.com/support/IMail/
