Public bug reported:
I currently use an Evolution setup in which I retrieve email via IMAP
from an unfiltered mailbox, and then use Evolution to automatically
filter for spam/junk mail.
This process works as expected upon starting Evolution: all email is
retrieved from the mailbox (and thus resides in the Inbox folder, where
it arrived), then it's filtered to identify spam, and then the spam is
moved from the Inbox to a Junk folder.
However, after Evolution has been running for some time (hard to
estimate because it requires an email to be received, but likely 5-10
minutes; it's possible that this is just "one email refresh interval"
but also possible that something else is going on), newly received email
stops being filtered for spam, and all the email remains in the Inbox.
This happens at least in the case of receiving one email at a time, and
most likely in the case where multiple emails are received in one
send/receive cycle.
When this failure to remove spam/junk happens, there's a yellow banner
at the top of the screen saying, for example (the filename is not always
the same),
"Error while performing operation.
Execution of filter 'Junk check' failed: Empty cache file:
/home/ais523/.cache/evolution/mail/1440221975.23984.44@tundra/folders/INBOX/cur/1f/23052"
I checked the contents of the file in question; it appears to be a copy
of the email that was just received, including all headers. (It's
possible that there's a race condition here and that the file was empty
when the filter looked at it, but became populated just after it errored
out, but perhaps something else is going on.)
This behaviour is a problem because it means that either I have to
delete junk mail by hand, or else that I have to repeatedly close and
reopen Evolution so that the automated system will work.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: evolution 3.18.5.2-0ubuntu3.1
ProcVersionSignature: Ubuntu 4.4.0-36.55-generic 4.4.16
Uname: Linux 4.4.0-36-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CurrentDesktop: Unity
Date: Mon Aug 22 17:19:59 2016
ExecutablePath: /usr/bin/evolution
InstallationDate: Installed on 2014-06-03 (811 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
ProcEnviron:
PATH=(custom, user)
SHELL=/bin/bash
LANG=en_GB.UTF-8
LANGUAGE=en_GB:en
XDG_RUNTIME_DIR=<set>
SourcePackage: evolution
UpgradeStatus: Upgraded to xenial on 2016-05-02 (112 days ago)
** Affects: evolution (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug package-from-proposed third-party-packages xenial
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https://bugs.launchpad.net/bugs/1615732
Title:
Execution of filter 'Junk check' fails with "Empty cache file"
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