808309 - I would like to add comments and dates to mails in the inbox

Status: RESOLVED DUPLICATE of bug 12306

(Thunderbird :: General, enhancement)

Description

[Martin Sch]

Very often I have the need to comment emails in my inbox for my own use.
This is helpful if I later look into the mail.
For example I have a mail with the text "ok, I'll promise I will do it" and I would like to add the note "asked him on phone to give me 1000 dollars".

Also, it would be nice to mark the mail with a date, for example how long it is valid. Let's say I get a mail with an invitation to a party on 1mar2013, so I would keep that mail and mark it to be deleted on 2MAR2013.

This could be done with some extra headers which are stored with the mail.
For example 
    X-Mozilla-Comment: asked him on phone to give me 1000 dollars

Comment 1

[WADA:World Anti-bad-Duping Agency]

Same request as followng already-existent bug or combination of bugs?
> Bug 91106  : "Change subject" feature
> Bug 254739 : [RFE] Allow edit any message (Note: real edit, not "edit as new")
> Bug 360975 : Message Handling: Add ability to 'Pencil Edit' received messages
Read also bugs listed in Dependency tree for Bug 91106 and dup bugs of them, please.