>I've been trying to send an email to a particular domain. Everytime I try
>to send an email it sits in the queue and goes no where. I checked the
>logs and it shows an SMTP_DELIV_FAIL message on that email (it's trying to
>connect to the A record IP address that the domain itself resolves to, not
>the MX record entry).
>
>I did a little more searching and discovered that the domain has an IP
>address for the MX record. Would Imail consider this an illegal entry and
>use the domain's A record entry instead?
The MX record must point to a fully qualified host name, according to the
RFCs. Although a human sees an IP address and knows what it means, the
computer expects a domain name there, and will treat an IP address as a
domain name -- which won't work. So IMail is correct to go to the A
record, since the MX record is FUBAR.
>I am able to send email to the domain via other mail servers.
Those mail servers are willing to accept an invalid entry and interpret it
the best they can. IMail follows the RFCs closer than those mail servers
do (they should technically be sending to the A record).
-Scott
Declude: Anti-spam and Anti-virus solutions for IMail. http://www.declude.com
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