Create filter to forward mail with modified title or content?

Question

I know how to create a filter to forward mails in Gmail, but I need to modify the title or content of the filtered mail (e.g., append the sender's email address) and then forward it. Is there any way I can do it?

I need this feature because I have a place (program) to deal with these forwarded mails, and the original sender's email address is important to me. With current Gmail filter+forward I have no way to know the original sender's mail address when dealing with these mails.

Answer 1

I'm afraid that's not (currently) possible with Gmail filters.

The available actions on a Gmail filter are:

• Skip the Inbox (Archive it)
• Mark as read
• "Star" it
• Apply a label
• Forward it to a forwarding address
• Delete it
• Never send it to Spam
• Send a canned response
• Always/Never mark it as important
• Exclude from SmartLabel categorization

There's nothing there that will actually allow for changing any of the content. You would need to use some third-party tool (if one exists).