>I this problem that Imail appears to be sending mail directly to the DNS
>A record as opposed to the MX records. Below are three snips of the log
>showing the stack connect fails to the A record, and no reference of the
>MX record
>being tried.
SMTP clients will attempt to deliver mail to a domain's A record, if MX is
not found, or maybe if none of the MX records are reachable. MX was
invented to allow separation of the SMTP server host at the MX record ip
from the domain host at the A record ip.
"dig netzero.net mx" returns 3 "MX 10" records but none of them have the ip
address 209.247.162.59.
"dig -x 209.247.162.59" returns a PTR record pointing to www.netzero.net.
Don't know why your Imail was futzing around with .59. Hard to say. We're
pretty sure Imail's smtp client knows how to do DNS lookups, vbg, so I bet
it got handed some bad poop by a bad cache somewhere.
Same dig story with cbn.net.id.
btw, did the mail ever get delivere?
Len
================
>I did lookups on the domains and they showed valid MX records that I could
>connect to via telnet, but still Imail was sending to the address listed in
>the A record.
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