SRV records

Hi,

is anybody aware of MTA software that uses SRV records for mail routing
(in addition(?) to MX records)?

I thought maybe Arnt would have some, but got NXDOMAIN ;-)

I don't know about the status of 2821bis - should they be mentioned?
Should there be a precedence of SRV records over MX records? Should
MX records become obsolete?

MTAs would use
    _smtp._tcp.example.com

Is it useful (e.g. wrt 2821bis) to also have
    _submission._tcp.example.com
for MSAs?

        \Maex

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