I'm currently trying to send mails via bash script on Linux. I searched the internet and found this code:
echo "This is my body" | mail -s"this is my header" email@example.com
I don't get any response either in the bash script nor when I type it directly in the command line. I waited for at least 3 hours now and still got no mail.
I just found that the log says
stat=Deferred: Connection timed out with backup-mx.mcs.de. when sending to my Mail address but also has some entries with