1280057 - Way to use body filters without downloading all messages

Status: UNCONFIRMED

(Thunderbird :: Filters, enhancement)

Description

[Tommyclann]

User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:45.0) Gecko/20100101 Firefox/45.0
Build ID: 20160414065514

Steps to reproduce:

Nothing, this is an enhancement request


Actual results:

You can't use body filters on IMAP accounts unless "Keep message for this
account on this computer" is checked. Seems reasonable but...


Expected results:

If automatic downloading of messages is disabled isn't there a way to tell Thunderbird something like "look, I've got a bunch of body filters you obviously can't apply for all messages because I don't download them, but why don't you do this: when you download a message for me to read, run the body filters through it and save the result. Do this for every message I read so that later I can apply body filters to several Read messages *without* having to download them again, allright?" ?

Comment 1

[Tommyclann]

Forgot to add Example: I create a filter like this "body contains: accepted", then I get and read an email that contains "accepted". While I am reading it TB runs the filter and since this message contains the word, then TB associates the filter and this message. Later I read another message that also contains the word "accepted" so TB associates it with the filter too.
I reboot the computer and reopen TB. I select the "body contains: accepted" filter and then the 2 messages I was reading previously are listed.