Re: [Imap-protocol] Registration of keyword which enables fetching external images

On Wed, May 20, 2015 at 8:47 AM, Jan Kundrát <[email protected]> wrote:

> Are some other client developers interested in this?


It seems reasonable to me to standardize a flag for this purpose, even if
many clients prefer to keep the setting local-only.  Thunderbird uses a
per-message "remoteContentPolicy" property that is persisted locally in the
msf files but never persisted to IMAP servers.  Once set, it allows
external images for the specific messages to be fetched going forward.
 (Some information leakage will be suppressed on repeated viewings because
of the network cache, but the images/etc. are likely to be rotated out.)

Note: I no longer actively contribute to Thunderbird, so if anyone is going
to change things to use the flag it won't be me.  I work on the Firefox OS
email app, and we currently have no plans to persist "show extenal images"
on a per message basis, but if we did, we would use the proposed flag since
we would synchronize the flag to the server when possible.

Andrew

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