I came across a problem today where Exim4 was just freezing messages in the queue.
When i unfroze one and tried to send it i got the following error message:
“R=nonlocal: Mailing to remote domains not supported”
A quick search showed that this was a configuration issue caused by Exim not being set to send mail to external locations. Thankfully this could easily be changed by running:
“dpkg-reconfigure exim4-config”
This will bring up a step by step config walk threw that you can use to make the needed changes. On the first option select :
“internet site; mail is sent and received directly using SMTP”
Finish the config and try and resend the messages.
Useful commands:
unfreeze a single message: exim -Mt messageid
unfreeze the entire queue and resend: exim4 -qff
remove all frozen messages: exiqgrep -z -i | xargs exim -Mrm
For more tips i recommend the following site with a good cheat sheet:
Exim Cheat sheet
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