On 11 Feb 2016, at 16:52, Benny Kjær Nielsen wrote:
On 10 Feb 2016, at 18:13, Roberto Thiella wrote:
When I archive a message from the inbox to the archive box it
disappear from the destination folder after a very short time.
The problem is that it disappear from the server and I can’t
rescue it any more.
Thanks for the second set of logs. I now have a theory. Here's the
important part:
15:57:26 C: J34 UID MOVE 39761 Archive
15:57:26 S: * OK [COPYUID 1452555050 39761 32355]
15:57:26 S: J34 OK UID MOVE Completed.
...
15:57:26 C: K35 NOOP
15:57:26 S: K35 OK NOOP Completed.
...
15:57:26 C: K36 UID STORE 39761 +FLAGS.SILENT (\Deleted)
15:57:26 S: K36 OK UID STORE Completed.
15:57:26 C: K37 UID EXPUNGE 39761
15:57:26 S: * 2 EXPUNGE
15:57:26 S: K37 OK UID EXPUNGE Completed.
In plain English:
* MailMate tells the server to move the message and this succeeds, but
apparently the message is not deleted from “Archive”. There should
have been an EXPUNGE reply as described
[here](https://tools.ietf.org/html/rfc6851).
* Then MailMate sends a NOOP (dummy command) in an attempt to trigger
the server to tell MailMate that it has expunged the message.
* Finally, MailMate deletes the message itself (from the INBOX).
Now, the message should still exist in Archive since it was successfully
moved, but I think the deletion in INBOX triggers it to be deleted in
both locations.
It's a serious server bug and you should inform Yandex. I'm afraid it's
not obvious how to work around it without making it very inefficient for
other servers. Since the side-effect of the bug is serious then I'll
insert an explicit check for `imap.yandex.ru` to disable the use of UID
MOVE. I'll also introduce a way to disable the use of UID MOVE
completely:
defaults write com.freron.MailMate MmNeverUseIMAPMOVE -bool YES
Let me know if Yandex tells you they fixed the bug (wishful
thinking...).
--
Benny
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