====== Утилита msmtp ======

<code>
# apt install msmtp

# cat /etc/msmtprc
</code><code>
defaults
port 25
tls off
auth off

account default
host mail.isp.un
domain server.corpX.un
#from asterisk@server.corpX.un  #need for mutt
</code><code>
$ cat mail.txt
</code><code>
Content-Type: text/plain; charset=UTF-8
To: userX@isp.un
From: Asterisk <asterisk@server.corpX.un>
Subject: Record
Запись
cделана
</code><code>
cat mail.txt | msmtp -f asterisk@server.corpX.un userX@isp.un
</code>