On 28.02.17 12:27, Bill Starrs wrote: > What I am looking to do is edit the headers of existing messages in my work > Inbox to add the Follow-up Flag, and sync those changes back to the Exchange > server with IMAP so that my flags are present in Outlook on my work machine.
OK, for post-processing old emails, you could set edit_headers in mutt, and hit 'e' to then add the header in the editor. In vim, I'd use a mapping to do it on a single keystroke. That's a fairly painless edit, and perhaps simplest, unless the old emails are very numerous and in maildir format, so you could feed a selection of them through sed or awk to add the X-Message-Flag header in bulk. To control what's there for editing, I have: set edit_headers=yes ignore * unignore In-reply-to References Reply-To cc To From Date Subject hdr_order In-reply-to References Reply-To cc To From Date Subject some just for information or deletion. The closest received message editing usage I have is to send myself an email as a reminder, then later edit it with updates, until it is resolved and can be deleted/archived. There are worse places than the primary inbox for reminders. Erik
