Re: [Evolution] How can I limit the amount of cache evolution is using?

Hi Milan,

Thanks for your answer.
I deleted my email account in evolution, closed it and manually deleted
everything in "~/.cache/evolution/mail/*".

Then I re-created my email account. I could see initially it was
downloading a summary of all the messages, but now it seems it is
downloading every single message. The lower banner says "Retrieving
message '41785' in INBOX" and is just carrying on... I think it is
indeed downloading all messages in my INBOX...

The "folders.db" file is about 4MB in size, and the "folders" directory
is almost 1GB and growing...

I double-checked the synchronisation setting, and it is unselected
(which I suppose is the default when you create a new account).

Any other idea?

Many thanks!

On Fri, 2016-03-04 at 07:16 +0100, Milan Crha wrote:
On Thu, 2016-03-03 at 21:50 +0000, Fabrice Triboix wrote:

The "Synchronize remote mail locally" option is not enabled.
It's an IMAP account, with gigabytes of emails. But I don't want
evolution to download all of that locally.
Pete is correct, evolution doesn't download messages locally without
purpose. It does cache folder content in some minimal form, to be
to fill the message list with usable data, but the whole messages are
not downloaded.

I would check whether it's the folder summary which takes so much
space, or the messages are truly downloaded. As you know how much
space is used, I suppose you know where to look. Just in case, it's
under ~/.cache/evolution/mail/<imap-account-uid>/. The folder summary
is stored in a folders.db file, while the cache itself is in

One option would be message filters and junk filtering. Some filter
rules may require full message download, that can be for example when
you filter on headers which are not part of the message list. The
filtering requires whole message content to make correct matches for
spam or ham.

Of course, when you view a message it's downloaded and stored in the
cache. There used to be no delete interval for the cache in the past,
but since some version, definitely 3.20.0, the cache for folders
are not marked for offline usage (there is a global option Pete
about, but also a per-folder option) is periodically cleaned (longer
unseen messages are deleted from the cache to free local disk space).

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