send mail in linux mint

msmtp

install msmtp (synaptic)

global cofiguration file /etc/msmtprc

# A system wide configuration file is optional.
# If it exists, it usually defines a default account.
# This allows msmtp to be used like /usr/sbin/sendmail.
account default

# The SMTP smarthost
host lx13.hoststar.hosting

# Use TLS on port 465
port 465
tls on
tls_starttls off
tls_trust_file /etc/ssl/certs/ca-certificates.crt

# Construct envelope-from addresses of the form "user@oursite.example"
# attention: must be working email, will be verified!!!
from wa@wlkl.ch

auth on
user wa@wlkl.ch
#password ??? # I didn't succeed with keyring ....
passwordeval cat ???

test echo -e "Subject:testfromM\r\n\r\ntext und so weiter\nzwei" | msmtp -v -d 2@wlkl.ch
- -v -d shows what is going on, errors are send to terminal, or to /var/log/apache2/error.log
- header must be separated by \n\r and terminated by \r\n\r\n
with to-header (is separate from destination address): echo -e "Subject:testfromM\r\nTo:to@x.y\r\n\r\ntext und so weiter" | msmtp -v -d 2@wlkl.ch
sendmail uses automatically msmtp: echo -e "Subject:test from Sendmai\r\n\r\ntext und so weiter" | sendmail -v -d 2@wlkl.ch
php mail function now also works
mail (synaptic install mailutils, mailjutils doc) also may use msmtp. configure: /etc/mail.rc
```
set sendmail="/usr/bin/msmtp -t"
```
- echo wie gehts text | mail -s fromMail wa@wlkl.ch
- echo wie gehts text | mail -s fromMailAttach -A e09Div.jpg wa@wlkl.ch also allows attaments, however fora bug ignores stdin and no body is sent

open

failed attempts

ssmtp: many website recommend it. However, it is no longer maintained, I could not bring it to work and normally I couldn't find any error messages