[BlueOnyx:13183] Re: Sendmail excessive recursion on a customer server

[Chris Gebhardt - VIRTBIZ Internet]

Hi Michael,

Problem solved (skip to the end if you like) but I'm putting in my 
comments to each suggestion as needed.


On 6/5/2013 11:49 AM, Michael Stauber wrote:
> As you said: Typically this is a DNS issue in combination with the FQDN
> of the site and the Email Server Aliasses.
>
> Things to check:
>
> 1.) Sitename: In this example I assume it is www.company.com.

Yes, correct.


> 2.) Email Server Alias: There should be only one, named "company.com".
> Clear this field out, save the changes and put "company.com" back in.
> Only that - no more. Then save once more.

I have done this, several times, with no change in behaviour.


> 3.) DNS:
>
> If you have the following DNS records (no more and no less) it simply
> ought to work:
>
>   company.com 	         ---- A Record ----> 	 <IP-Address>
>   www.company.com	 ---- A Record ---->	 <IP-Address>
>   company.com	 	 ---- MX Record --->	 www.company.com (*)
>   www.company.com	 ---- MX Record --->	 www.company.com (*)
>   <IP-Address>	 	 ---- Reverse ---->	 company.com (**)


There was not previously a null hostname A record.  I have added that, 
restarted Sendmail, no effect.

> After you saved the "Email Server Alias", Sendmail should have been
> restarted. For good measure restart it manually as well: "service
> sendmail restart".

Yes, I tried that as well.

> Check "cat /etc/resolv.conf" to see which DNS server your BlueOnyx is
> using. Maybe it is using a DNS server to which these changes haven't
> propagated yet.

Ah ha, you were very close on this one.  The customer uses godaddy.com 
for the registrar and historically they are very slow to propagate their 
updates.   Funny enough, I came back from lunch and it's working just 
fine now.

Thanks for the advice and help.   Next time I get stuck with this issue, 
I'll be sure to try an nslookup, dig, or host from the box in question 
to see what it is seeing.

-- 
Chris Gebhardt
VIRTBIZ Internet Services
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