To add to it, this just becomes more anguish when common, rather I would say major, Linux applications suck in changing the default sender address off from ‘root’ (although some apps like ‘exim -f’ and mutt having SET FROM defined in ~/.muttrc allow you to change sending address while emailing from command line but this isn’t what I needed). And so called mighty default MTA, sendmail just brings more panic to it when trying to change it during an in-mail transport (btw, I already dislike sendmail mainly cause of its sluggishness during startup and restart)! As I really had to do something about it and I already knew that Exim’s address rewriting can be helpful here so after installing it and changing default MTA with ‘alternative –config mta’ I added a quick rewrite at transport.

$ grep -A 5 remote_smtp /etc/exim/exim.conf | tail -5

driver = smtp
headers_rewrite = root@*  some-email-address@example.com fsr

This worked but didn’t change the FROM field’s name as expected. I tried combinations of different settings including the rewrite tag ‘F’ but the FROM envelop address kept showing the original sender root. I was searching till I stumbled upon http://www.exim.org/exim-html-2.00/doc/html/spec_32.html#SEC671 where it states the FULL ‘from’ envelop address is changed with ‘w’ tag and allows to have a new sender name (RFC 822) to be configured. So I added.

$ grep -A 5 remote_smtp /etc/exim/exim.conf | tail -5

driver = smtp
# Adding to rewrite the stupid root@ FROM field which I hate
headers_rewrite = root@* "Abbas <some-email-address@example.com>" fsrw
return_path = some-email-address@example.com

And boo you naughty (!) root