I am trying to send a mail from my raspberry (raspbian). However, I am receiving an error:
pi@thomas:~ $ echo "Hello World" | mail -s "Test" abc@zyx.com
mail: cannot send message: Process exited with a non-zero status
I am pretty sure my config files are correct (I tested them on my linux mint system and they worked well without any problems). Looking at /var/log/mail.err on the raspbian system, I cannot find any logs (just an empty file). Thus I am quite helpless at the moment, I have no clue where to start fixing my problem.