Your DNS request/reply need only contain the MT/RMX/MS record of the IP
address that is connected to your mail server. You should not need to
transfer all MT/RMX/MS records.
On Tuesday 18 March 2003 10:33 am, Valdis(_dot_)Kletnieks(_at_)vt(_dot_)edu
wrote:
Note that a large domain may have many MT records. This will cause a
dropback to TCP if the DNS reply exceeds 512 bytes.
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