sendmail has nothing to do with this sort of thing, you proabbly want to use procmail and formail to generate a reply. in their home directory, you need a .procmailrc file, and in that something similar to
:0 c
| (formail -X From: ; echo "Subject: Jeff's address has changed" ; echo "Apparently, our mail server isn't good enough for jeff, ,she wants to suse hotmail for some daft reason we don't understand" ) | sendmail -t
yeah? not guarenteeing that'll work instantly, as it's from memory... close tho... you should have `man procmailex` to help you. theres also a vacancy program i think that might be useful
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