/etc/msmtprc defaults
maildomain example.net
syslog LOG_MAIL
aliases /etc/aliases
account default
host mail.example.net
port 587
from srv7@example.net
auth on
user user@example.net
password ********
tls on
tls_starttls on
#tls_certcheck off
tls_fingerprint DB:A0:2A:07:00:F9:E3:23:7D:07:E7:52:3C:95:9D:E6:7E:12:54:3F
Your alias file
# /etc/aliases default: me@example.net
A php script to send mail
#!/usr/bin/php
<?php
define('TAB',"\t");
$user = $_SERVER['LOGNAME'];
$host = exec("hostname -f");
$from = $user.'@'.$host;
$to = 'sweety@example.net';
$subject = 'Testing msmtp';
$message = 'hello from '. $host;
$headers = 'From: '.
#!/bin/bash SENDMAIL=/usr/sbin/sendmail RECIPIENT=tosomeone@example.com FROM=me@example.com cat <<EOF | $SENDMAIL -t ${RECIPIENT} From: ${FROM} To: ${RECIPIENT} Subject: testmail some test text as body of the email. EOF
This is useful when you need the fingerprint to identify via TLS
Get the raw certificate:
echo Q | openssl s_client -connect mail.example.com:443 Copy and paste the scribble from —–BEGIN CERTIFICATE—– to —–END CERTIFICATE—– to a file called cert.pem. Including —–BEGIN CERTIFICATE—– as first and —–END CERTIFICATE—– as last line.
Generate the SHA1 fingerprint by issuing following command:
openssl x509 -in cert.pem -sha1 -noout -fingerprint
