MX record question ...

[Barry Margolin]

In article <87vr3j$ltu$1 at bob.news.rcn.net>, David Zade <dzade at rcn.com> wrote:
>Is the sendmail error message occurring on sys1.domain.ca?  If so, I think,
>sendmail is using the wildcarded MX record *.domain.ca for mail destine to
>sys2.domain.ca which points to sys1.domain.ca.  sys1 trying to forward mail
>to sys2 by sending it to itself constitues a loop, hence the error.

It shouldn't be using the wildcard, because sys2.domain.ca exists
explicitly in the zone file.  Wildcards matching occurs *before* checking
the record type.

>Jeffery Richards [2667] <jrichard at mda.ca> wrote in message
>news:200002101651.IAA11385 at sonny.mda.ca...
>> I have one more question to ask ... having a bit of "fun" with the MX
>> records here.  I'm getting the error message:
>>
>>    sendmail[17433]: PAA17433: SYSERR(root): MX list for sys2.domain.ca
>points
>>                     back to sys1.domain.ca
>>
>> Sys2 is our majordomo server and sys1 is our email server.  In the zone
>> file I have the following:
>>
>>    domain.ca.                 IN      MX      10 sys1.domain.ca.
>>    *.domain.ca.               IN      MX      10 sys1.domain.ca.
>>
>> And also in order to keep web surfers happy because they can't seem to
>> remember to enter www.domain.ca but only domain.ca I have:
>>
>>    domain.ca.                 IN      A       999.999.50.1
>>
>> This is in addition to the regular A records:
>>
>>    www.domain.ca.             IN      A       999.999.50.1
>>    sys1.domain.ca.            IN      A       999.999.100.1
>>    sys2.domain.ca.            IN      A       999.999.100.2
>>
>> These are the only records I think are relevant, but I don't see how or
>why
>> the error is coming out.  Can someone perhaps explain the error message in
>> a bit of detail and then perhaps I can determine the cause(s).
>>
>> Thanks.
>>
>> --
>>
>+------------------------------------+--------------------------------------
>--+
>> | Jeff Richards - Network Engineer   | Phone: (604) 231-2667
>|
>> | MacDonald Dettwiler Ltd.           | FAX:   (604) 278-3786
>|
>> | 13800 Commerce Parkway
>+----------------------------------------+
>> | Richmond, BC  CANADA  V6V 2J3      | Email: jrichard at mda.ca
>|
>>
>+------------------------------------+--------------------------------------
>--+
>>
>>
>>
>
>
>
>
>


-- 
Barry Margolin, barmar at bbnplanet.com
GTE Internetworking, Powered by BBN, Burlington, MA
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