How to rewrite outgoing email address in sendmail

We can edit the file below to rewrite outgoing email address.

/etc/mail/genericstable


Add the line below

youraccount [email protected]


regenerate the hash file

makemap -r hash genericstable.db < genericstable



You can also edit /etc/mail/aliases for local accout


Alias to your alias account

youraccount   youaliasaccount


Or alias to your device

youraccount   /dev/yourdevice


Remeber use newaliases to update the hash file