[Techtalk] Unix program that sends email directly using MX record

[Kelly Jones]

What Unix program sends email directly, using the MX record of the
recipient, instead of using sendmail or an installed MTA?

I realize I could tweak sendmail.cf/etc to do this, but that's not
working in my (fairly unusual) special situation.

I also realize that sending email directly is normally "bad", but I'm
testing something.

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