1
vote
1answer
335 views

How can I edit headers of e-mail in my Gmail account?

I used Thunderbird to move e-mails from one account into my Gmail account, but somehow some of the e-mails' From headers have disappeared. I would like to edit the e-mails to add these headers again.
1
vote
1answer
360 views

Gmail forward set “reply-to” header

Is there anyway I can froward all emails from a Gmail account to a number of other e-mail accounts and then setting the reply-to (or from) header as the Gmail's account? So multiple people can use ...
4
votes
2answers
3k views

Is it possible to modify outgoing mail headers in Gmail?

Is there any way to modify the mail headers in an outgoing message sent using Gmail? I'm interested in doing this to add an "Approved:" header to a Mailman announcements-only list (reference).