03:14 08:07 SMTP-(00000484) rdeliver aol.com [EMAIL PROTECTED] (1)
<[EMAIL PROTECTED]> 6672

Then wasn't the email delivered?

"rdeliver" says yes


If so, why do I get an email reply that says:


... while talking to air-xa03.mail.aol.com.: >>> RCPT To:<[EMAIL PROTECTED]> <<< 550 MAILBOX NOT FOUND 550 <[EMAIL PROTECTED]>... User unknown

AOL's MXs don't know about user accounts, so can't do per-user reject, so the MXs accept all msg's for @aol.com.


Then other internal boxes try to deliver to the user mailbox (and apply AOL's policies), and it's these internal boxes that do per-user reject and generate the bounce message.

IMGate machines that accept per-domain act the same way. IMGate accepts all mail for @mydomain.com so your Imail log sees the msg as delivered (to IMGate), and then the internal mailbox server (eg, IMail) rejects the msg from IMGate, so IMGate generates the mailer-daemon bounce msg back to the envelope sender.

If the mailbox server exports its list of accounts to IMGate, then IMGate will do per-user accept/reject.

Len


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