Actually, you can add headers of all kinds: Quick search of "sendmail add headers" discovers:
https://serverfault.com/questions/347602/sending-e-mail-from-sendmail-with-headers Brian Andrus On 8/26/2020 10:02 PM, Andrew Elwell wrote:
Hi folks, I'm getting fed up receiving out-of-office replies to slurm job state mails. Given that by default slurmctld just calls /bin/mail (aka mailx on our systems) which doesn't allow command line options to add headers such as 'Auto-generated: auto-submitted' to help educate auto responders, does anyone have a nice wrapper script I can steal (or they can send to the contribs/ folder) to convert 'mail -s "string" address' into something I can poke straight into /usr/sbin/sendmail? I looked at the seff / smail one, but that too just calls /bin/mail by default, If not, I'll start hacking something together but wanted to cut down on replicating wheels. Andrew
