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или
# apt install mutt
$ export EMAIL="Петр Петров <user2@corpX.un>" $ echo "СПАМ" | mutt -s "Тема письма" user1@corpX.un
userX@gate.isp.un:~$ echo "superfilm text" | mutt -s "superfilm subject" -a /tmp/virus.zip -- user1@corpX.un