As I mentioned previously, I don't use BIND
so I don't know how to add a TXT record to an MX lookup,
but it cannot be difficult and isn't disallowed.
I think the BIND example before looked like this:
mx.example.com. A 10.9.8.7
TXT "v=spf mx -all"
Now reading it that way, it may look like the 'mx.example.com'
has two pieces, an A and TXT "in one piece". But the above
BIND zone snippet is equivalent to
mx.example.com. A 10.9.8.7
mx.example.com. TXT "v=spf mx -all"
or even
mx.example.com. A 10.9.8.7
blah.example.com. A 127.0.0.1
mx.example.com. TXT "v=spf mx -all"
You've created two separate types of records for mx.example.com,
an A record and a TXT record. The first example does use the
shorthand of not explicitly naming the hostname itself, but it's
still a completely separate record.
Hopefully this clarifies some of the confusion.
--
Brian Hatch "In Valen's name."
Systems and
Security Engineer
http://www.ifokr.org/bri/
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