please customize EHLO/HELO command sent to the mail server when autoreply is sending by vacation.pl.
Currently Mail:Sendmail or Mail:Sender send "EHLO localhost" to the server.
Mail server treats that mail like a fake or spam (very little mail servers introduce themselfs as "localhost").
The best way would be to customize "HELO/EHLO" command introduced by vacation to mailserver in vacation.pl config.
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