Re: [Evolution] missed messages

[Jesse Lazar <jesse205 gmail com>]

On Tue, 2010-03-02 at 00:18 -0430, Patrick O'Callaghan wrote:
> On Mon, 2010-03-01 at 21:04 -0500, Jesse Lazar wrote:
> > On Mon, 2010-03-01 at 19:08 -0430, Patrick O'Callaghan wrote:
> > > On Mon, 2010-03-01 at 17:46 -0500, Jesse Lazar wrote:
> > > > I am a happy evolution user, but I recently encountered a problem.
> > > >
> > > > The problem is that in the last two weeks I have missed a series of
> > > > emails, from a specific sender, in such a way that evolution simply
> > > > marked the messages as read but did not download the local copy. I use
> > > > POP access through gmail. 
> > > >
> > > > I finally figured out that the messages were sent to me because I can
> > > > see them if I use the gmail web interface and look in my email
> > > > "archive". The thing is I use evolution so I don't often use the gmail
> > > > web interface, plus the messages were marked as read, and moved from my
> > > > inbox.
> > >
> > > What's moving them from the Inbox?
> > I have it set up so that once my messages are downloaded they are marked
> > read, so I guess gmail moves them from the Inbox folder.
Within Evo these messages are subject to a filter, based on sender, that
simply places the messages into a folder other than "inbox". At the very
least this filter functioned properly for the last six months and I did
not make any changes.

Within Gmail, under the POP setup is where I selected an option to
"archive messages" after they are accessed, but I have no filters set up
in Gmail.

> Gmail will definitely not do this by default, only if you explicitly
> tell it to do so using a filter. The exact behaviour will depend on
> whether the filter is in Gmail or in Evo. If it's in Gmail, my
> understanding is that it will fire as soon as the message arrives in the
> Inbox, which is before Evo gets a chance to see it. That could explain
> what you're seeing, but I would expect it to apply to every message, not
> just some. OTOH if the filter is in Evo itself, it will fire only when
> Evo sees a message it regards as new (which is *not* the same as
> "Unread", see below).
>
> > In addition, if I mark a message as unread (including these) and move it
> > back to the inbox (in gmail) then evolution still skips the message...
>
> Remember that Gmail doesn't really have folders, just labels, i.e.
> "moving" a message to Inbox is just changing a label. It's not a new
> message even if it's marked as unread, and I'm guessing it doesn't have
> a new UID (Unique IDentifier). Using POP, Evo will only consider as new
> messages whose UIDs it hasn't already seen. (This is hypothetical as I
> don't actually know how Gmail handles UIDs.) The question then is "why
> does Evo think it has already seen these UIDs?". That might depend on
> exactly what your filters are doing.
Can I fool Evo and make it believe an old message is new? I think that
Evo updated its UID database and marked these messages as seen (or
however the mechanism works) before delivering my messages.

> poc
>
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