[NTLUG:Discuss] Mail server not propagating?

[Greg Edwards]

Neil,

You'll find write-ups on this issue in the sendmail and bind Howtos as 
well as the BIND and DNS and sendmail books.  Several things can cause 
this.  Check your hosts file to make sure you don't have the wrong IP 
assigned there.  Also rebuild your NIS maps if your using NIS. 
Sometimes sendmail will choke on an address if your using a CNAME for 
your mail server, use an A record instead.  Also make sure your sendmail 
config has the correct masquerade and domains configured.

This may start a religous war but, IMHO, there isn't anything wrong with 
BIND or sendmail.  They're both good products if they're configured 
correctly.  I also use webmin to configure both and (other than setting 
the directory in named.conf) I don't have any complaints.

Neil Aggarwal wrote:

> Brian:
> 
> The idea is for others to jump in and help.
> 
> I want mail.parasailworkshop.com to resolve to 66.181.172.254.
> 
> The problem is that my sendmail on the old mail server
> 204.130.252.205 keeps telling me that mail.parasailworkshop.com
> loops back to itself, which should not be the case.
> 
> I don't know why this would happen.  I am using
> webmin to manage the DNS, which I have never had
> a problem with in the past.
> 
> This is really driving me nuts. Do you have any ideas?
> 
> Thanks,
> 	Neil
> 
> --
> Neil Aggarwal
> JAMM Consulting, Inc.    (972) 612-6056, http://www.JAMMConsulting.com
> Custom Internet Development    Websites, Ecommerce, Java, databases
> 
> 
> 
>>-----Original Message-----
>>From: discuss-admin at ntlug.org [mailto:discuss-admin at ntlug.org]On Behalf
>>Of brian at pongonova.net
>>Sent: Friday, June 14, 2002 11:30 PM
>>To: discuss at ntlug.org
>>Subject: Re: [NTLUG:Discuss] Mail server not propagating?
>>
>>
>>Hey, Neil, I'm not Eric, but since you guys are discussing this on-line, I
>>thought I'd jump in here and ask what, exactly, the problem is.
>>mail.parasailworkshop.com resolves to 66.181.172.254...is this
>>not correct?
>>According to your previous posts, this should be the IP address
>>you're looking
>>for...
>>
>>Also, if you're using nslookup to verify this stuff, please do yourself a
>>favor: Remove it from your system and use dig.  dig will provide
>>you with far more
>>information than nslookup.  Then verify your A record with another server:
>>
>>dig @curley.dcccd.edu mail.parasailworkshop.com
>>
>>There's a good possibility the name server you're querying is
>>brain-damaged (and
>>yes, there are many of those in the world, most of which are
>>running BIND).
>>
>>  --Brian
>>
>>
>>On Fri, Jun 14, 2002 at 11:07:51PM -0500, Neil Aggarwal wrote:
>>
>>>Eric:
>>>
>>>I did update the serial number, so it should have propagated.
>>>I have change it again and restarted named.
>>>
>>>What is strange is that www has propagated, but not mail.
>>>
>>>Any other ideas?
>>>
>>>Thanks,
>>>	Neil.
>>>
>>>--
>>>Neil Aggarwal
>>>JAMM Consulting, Inc.    (972) 612-6056, http://www.JAMMConsulting.com
>>>Custom Internet Development    Websites, Ecommerce, Java, databases
>>>
>>>
>>>
>>>>-----Original Message-----
>>>>From: discuss-admin at ntlug.org
>>>>
> [mailto:discuss-admin at ntlug.org]On Behalf
> 
>>>Of Eric Schnoebelen
>>>Sent: Friday, June 14, 2002 4:57 PM
>>>To: discuss at ntlug.org
>>>Subject: Re: [NTLUG:Discuss] Mail server not propagating?
>>>
>>>
>>>
>>>"Neil Aggarwal" writes:
>>>- Eric:
>>>-
>>>- I looked thru the DNS records on dns2, dns3, and dns4 on
>>>- jammconsulting.com and they dont refer to dns3 in their
>>>- SOA records.
>>>-
>>>- Also, all of them resolve to 66.181.172.254, which
>>>- is the correct machine.
>>>-
>>>- Do you see something different?
>>>
>>>	Nope, just taking a guess.
>>>
>>>	The bigger question still stands, did you remember to
>>>update the serial number in the SOA record when you made the
>>>change to parasailworkshop.com?  If you don't remember, do it
>>>again, and reload the zone file.
>>>
>>>--
>>>Eric Schnoebelen		eric at cirr.com		 http://www.cirr.com
>>>	Theoretical Physicist -- a physicist whose existence has been
>>>	    postulated, to make the numbers balance, but who is
>>>		never actually observed in the laboratory.
>>>
>>>_______________________________________________
>>>http://www.ntlug.org/mailman/listinfo/discuss
>>>
>>_______________________________________________
>>http://www.ntlug.org/mailman/listinfo/discuss
>>
> 
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-- 
Greg Edwards <greg at nas-inet.com>