I am on Gmail. I would like to compose a new email with the exact same list of recipients (to, cc, bcc) from an existing email.
Is there an easy way to do it?
The easiest way to do it is simply to "Reply All" on the existing message, delete all of the quoted text and the existing subject, and write a brand new message.
The downside to this method is that it'll include a tracking header in the message that ties back to the original message. Email clients that use that information will indicate the new message is a reply to the original, although it's not. These days, though, I don't know that many email clients use that. Even Google's conversation mode uses the subject line more than the reply headers.