CNAME/MX question...
Joseph S D Yao
jsdy at cospo.osis.gov
Thu Sep 7 16:23:18 UTC 2000
On Thu, Sep 07, 2000 at 10:10:26AM -0500, Vyto Grigaliunas wrote:
> I apologize in advance if this is not the proper forum for this question...
>
> If SMTP mail is being addressed to a CNAME record and an MX record is desired
> to be associated with the CNAME, can I associate an MX record with the CNAME
> or will SMTP/sendmail follow the CNAME to the target canonical name and find
> the MX record(s) associated with that target canonical name.
Proper forum.
Your question is not clear.
If you are addressing e-mail to vyto at grigaliunas.fnal.gov, and in the
fnal.gov zone, the CNAME for grigaliunas is woozle.fnal.gov:
grigaliunas IN CNAME woozle.fnal.gov.
then this will work fine.
However, if you are sending e-mail to vyto at fnal.gov, and the mail
server is heffalump.fnal.gov, but you put another name in the MX record
whose CNAME is "heffalump":
grigaliunas IN CNAME heffalump.fnal.gov.
@ IN MX grigaliunas.fnal.gov.
then this is NOT good. The target of the MX record may not be a name
that has a CNAME record.
[Why eeyore, heffalump, and woozle, but no pooh or piglet??? ;->]
--
Joe Yao jsdy at cospo.osis.gov - Joseph S. D. Yao
COSPO/OSIS Computer Support EMT-B
-----------------------------------------------------------------------
This message is not an official statement of COSPO policies.
More information about the bind-users
mailing list