Evolution's crazy habit with moving an e-mail to a folder !?

[Rashkae]

Derek Broughton wrote:
> John Carlyle-Clarke wrote:
> 
>> SYNass IT Ubuntu / Linux wrote:
>>> Moving some e-mails to their respective folders where I want them ...
>>> ... also produces an entry in the Trash folder and this really drives me
>>> crazy !!
>>>
>>> Why does this happen like this ???
>>>
>>> I find it absolutely confusing and NOT necessary !!!
> 
> It is _absolutely_ necessary.
> 
>>> I believe that ONLY deleted messages shall go to Trash !!
>>> The rest remain either in the Inbox or where they have been
>>> copied/moved !
>>>
>> This is expected behaviour.  When you delete a message in Evolution, it
>> marks it as deleted and leaves it in place, but hidden. 
> 
> This is not simply Evolution behaviour, but a requirement of the Maildir
> format.


It is sort of an Evolution behaviour... Or more accurately, an absence 
of behaviour.  Unlike most other Mail clients, Evolution doesn't 
actually move any messages to a Trash folder.  Messages that you 
'delete' or 'move' are simply marked for deletion in the mail storage 
(be it maildir, mbox or imap).  The 'Trash' in Evolution is just a 
filter that shows you all messages marked for deletion in all your 
mailboxes.  (Unlike other mail clients, such as Thunderbird, that will 
actually write a copy of 'deleted' messages into a Trash file)

Evolution's method is much more efficient, taking advantage of all 
standard e-mail storage techniques to mark messages for deletion, rather 
than writing out a new copy of all mesages when they are deleted (if you 
think about it, that's kind of boneheaded).  But as a side effect, 
there is, mechanically, no difference to the underlaying mail system 
from messages that are deleted outright or moved.