Re: [IMail Forum] imail, meltdown

Mon, 17 Feb 2003 11:26:00 -0800 



> >I have some issues with mail not getting delivered to users from certain
> >domains; this may be a separate issue, maybe not?
>
> What is the domain that they are being sent to (so we can check to see if
> there is a DNS issue)?

I used dnsreport.com to generate report on the domain, and while most passed,
there were a few failures, including lack of MX record in the two
non-authoritative ns listed in my router.




The DNS Report doesn't check for MX records for your nameservers -- it only 
checks for MX records for the zone that you are running the report on.  So 
if you run a DNS report on "example.com", it won't check to see if 
ns1.example.com has any MX records.  If you ran the DNS report on 
"ns1.example.com", it would check -- but you shouldn't run the DNS report 
on a hostname.




> When the E-mail is sent, does the sender receive a bounce message (if so,
> what does it say?)?  Do your IMail SMTP log files show the delivery
> attempts?

The logs show, for the mail being delivered to our users,
'NOTIFY=FAILURE,DELAY'.




That's actually not the information we need -- that just shows that there 
is a "RCPT TO:" line, which means that the remote mailserver *did* connect 
to your server (although lots of people get scared by the 
"NOTIFY=FAILURE,DELAY", which just means that the sender requested the 
return receipts, and does not indicate that a failure or delay 
occurred).  What is important is the lines after that, that show whether or 
not IMail received it, and whether or not IMail delivered it.




Sometimes there was an entry for 'ldeliver...' but
most often not. I did up the number of attempts and time frame for delivery
attempts, but I've not noticed any difference.




For local mail, the number of attempts shouldn't matter.



If you post a full log snippet for one of the E-mails that wasn't received, 
that may be helpful.



                                                   -Scott

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