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Re: [ietf-smtp] Domain names in the presence of CNAME records

2013-05-06 09:01:39

On May 6, 2013, at 2:43 PM, Bart Schaefer 
<barton(_dot_)schaefer(_at_)gmail(_dot_)com> wrote:

The relay should not rewrite the address.

The receiving server can treat the address any way it wants to.


CNAMEs (or NSes) at the DNS level shouldn't affect anything
at the SMTP level other than by the MX and address records
returned by the resolver. (Though some software used to -
and likely still does - rewrite addresses in this way.)

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