[Evolution-users] Duplicate Messages

[Jonathan Ryshpan]

On Fri, 2022-12-16 at 16:11 +0100, Milan Crha via evolution-users wrote:
> On Fri, 2022-12-09 at 06:13 -0800, Jonathan Ryshpan wrote:
> > Connection is IMAP
> 
> You can try to figure out how much duplicates they are, aka whether
> they are truly identical, when you save them as an MBOX file and
> compare them (diff -u mbox1 mbox2).
I have been removing duplicates by highlighting a suspected portion of a
message list and then invoking
   message->Remove Duplicate Messages
which appears to remove only truly identical messages (is this true?).

> You can also add a UID column into the message list, those messages
> should have different UID, in which case they are "physically" on the
> server.
What is the UID? I surmise from your post that duplicates in a message
list are several pointers in a database, all pointing to the same
message file. I had thought that duplicates were detected by generating
a checksum for each message and them comparing them; it looks like this
is not so. (is this true?)

> You can try to remove corresponding ~/.cache/evolution/mail/<account>/
> directory to start from scratch, in case it's anything about broken
> content there, but I doubt it's it. It will index the content again,
> which can take a long time, depending on the size of the
> account/folders.
I fear this will take a long time since I have several hundred thousand
messages stored on the local machine.

-- 
Sincerely Jonathan Ryshpan <jonrysh at pacbell.net>

 If thousands of volunteers can make an operating system
 that doesn't crash, thousands of highly paid engineers
 should be able to do it, too. Then why don't they?
 -- Al Fasoldt
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