msmtp

/etc/msmtprc

defaults
port 587
tls on
set_from_header on
account leprovokateur@hack-hro.de
host mail.hack-hro.de
from leprovokateur@hack-hro.de
auth on
user leprovokateur@hack-hro.de
password ""
account default : leprovokateur@hack-hro.de
aliases /etc/aliases

/etc/aliases

root: leprovokateur@hack-hro.de
default: leprovokateur@hack-hro.de
cron: leprovokateur@hack-hro.de