Gmail lets you change the subject of a reply or forwarded email, but the option is a little hidden. This is particularly useful whenever you must reply with “UNSUBSCRIBE” in the subject line to be taken off a mailing list.

To do this in the web version of Gmail, click the “Reply,” “Reply All,” or “Forward” option to start composing your reply or forwarded email.

Click the button to the left of the “To” field and then click “Edit Subject.”

Gmail will show you an email compose pane with an editable subject field. Change it to whatever you want—you could add the word “UNSUBSCRIBE,” remove the “Fwd:” from a forwarded email, or write a new subject line.

That’s all you have to do. Click “Send” to send the email when you’re done composing it.

On the Gmail app for your phone, this is even easier. While composing a reply or forwarded email, the Subject line will appear and be editable above the body of the email. Just scroll up and change the subject to whatever you like.

Chris Hoffman Chris Hoffman
Chris Hoffman is Editor in Chief of How-To Geek. He's written about technology for nearly a decade and was a PCWorld columnist for two years. Chris has been interviewed as a technology expert on TV stations like Miami's NBC 6 and Chicago's WGN-TV, and his work has been covered by news outlets like The New York Times and the BBC. Since 2011, Chris has written over 2,000 articles that have been read more than 500 million times---and that's just here at How-To Geek.
Read Full Bio »