Re: [Evolution] Missing attachment clip icon

[Andrea Vai <andrea vai unipv it>]

Hi Milan,
Il giorno lun, 14/05/2018 alle 10.34 +0200, Milan Crha ha scritto:
>  in a different
> evolution, yours 3.26.6, then it shows no attachment icon initially,
> but as soon as I view the message for the first time the icon is
> added.
>
> It is not added when I play with internal files and keep the cached
> message content on the disk. It requires to re-download the message
> from the server.
>
> Could there happen anything to your local summary after the message
> had
> been downloaded? You even might not notice it, like when the server
> reports a UID validity change, though then the locally downloaded
> messages in the cache should be deleted as well.
>
> You can workaround this by searching for the message in
>    ~/.cache/evolution/mail/
> for example by searching for the Message-Id header value. You can
> delete that message even when evolution is running, the next time
> you
> select it it'll be re-downloaded and the attachment icon will be
> added.
I have tried and I can confirm that this is exactly what happens here.
As far as I can understand, we don't know exactly why this happens, do
we? Should we try to find it out?

> I can add a code to determine attachment existence whenever the
> message
> is loaded, thus also when loaded from the local cache, instead of
> from
> the server, but then it will be waste of resources most of the
> times,
> which I hesitate to do.
Of course, I don't pretend it to be done. But I have to admit that
this behavior (bug?) is quite annoying. When I need to quickly find a
message (and I remember it has an attachment), I often search for it
by looking at the clip icon, so if the clip icon is buggy I have to
spend more time. Just now I have received another message (from the
same person, same Apple Mail client) with the exact same behavior. It
seems to always happen with messages from that person. I am wondering
if it is a problem experienced by all attachments sent by an Apple
Mail client, which surely would increase its importance.

> > You can also find at [1] the screenshot of the bottom part of the
> > message as rendered in evo. BTW, I could be wrong but I think I
> never
> > encountered such a signature below the "attachment lines" (sorry
> for
> > the improper name). Also, those two white strips below the 2nd and
> > 3rd attachment rows (xls and 1st docx) seem strange to me.
>
> Those are the text/html parts in the message, as constructed by the
> Apple Mail, including the two "white strips" between attachments.
thanks for the explanation; so, given all the above, should we
consider Apple Mail as "buggy"?

> > Last note: if I double click on the first attach in the attachment
> > bar ("allegato.dat") at the very bottom of the window, it shows a
> > sort of message source in my text editor, is this normal?
>
> I didn't see that "attachment.dat" here, only after I set in Edit->
> Preferences->Mail Preferences->HTML messages to suppress the HTML
> part
> and to add it as an attachment in the Prefer Plain section at the
> bottom of that tab.
Thanks, indeed, those were the options I had selected, and I have now
understood better how they work. To be honest, I have realized that,
with regard to the message (structure) above, I need to choose between
the presence of attachment.dat or the html view of the message (both
annoying to me (personal opinion)), because if I disable the checkbox
"show HTML suppressed part as attachments" and I don't choose the
first option ("Show HTML if present") in the "HTML mode" combobox, the
attachments are not shown at all (which would be the worst effect).

BTW, and eventually, I have also received a message from an iPhone
with a similar behavior (problems to show attachments). I can share
some details here, if it matters (didn't do it right now because I
don't want to mess up the thread).

Thank you very much for your explanations,
bye
Andrea