I see other posts relating to this topic but I cannot find a definitive answer. We wish to use Imail as a gateway for "incoming" mail only in front of Exchange. We have created only a bogus host name within Imail called bogus.com. Modified the MX record for the real domain to point to the Imail box. Created a host file entry on the Imail box to point to the Exchange box (MX resolution on the Imail box for the real domain correctly points to the Exchange box as a result). We have enabled "Relay Mail for" and included the IP of the Exchange box. Yet email destined for the real domain is still denied "not a gateway" at the Imail box.
According to the manual: Setting Up IMail Server as a Mail Gateway If you are using any of the "Relay Mail for" options on the SMTP Security tab, and want to relay outgoing mail for another mail server, the address of the other server must be added by using the "Addresses" button, and entering the remote IP's into the table. the only thing the "relay mail for" option restricts are the IP's of the SMTP client allowed to "send into" the Imail server, not "receive from" the Imail server. How do I allow Imail to relay for a specific destination without opening it up for the world? FYI, if I do open up to "relay mail for anyone" mail flows correctly. Thanks! Bob
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