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20. May 2010, 12:17:49

pursanovd

Posts: 12

Unread mail problem

I have set Gmail IMAP in Opera Mail client. Why do unread messages show incoming mail twice?

20. May 2010, 12:39:05

pursanovd

Posts: 12

Thank you smile the problem seems solved(but i think i did the same during the setup sad )..Lets see how it works after some time.

20. May 2010, 12:39:44

burnout426

Posts: 13195

Awesome.

The short answer is Opera uses a database to keep track of all messages from all IMAP folders for the entire IMAP account. Then it uses filtered views (Unread, All Messages/Received etc.) to only show certain messages from the database that fit the search criteria for that view.

Now for Gmail IMAP, it uses a database too mostly. It's the [Gmail]/All Mail IMAP folder. But, for filtered views, the Gmail IMAP server creates a copy of the message and puts a copy in each IMAP label folder you have. Since the "Inbox" IMAP folder is a label folder, when the message isn't archived, you have 2 physical copies of the message on the IMAP server: 1 in [Gmail]/All Mail and one in Inbox. And, since both copies of the message are unread, you'll see both copies in Opera's Unread view.

If you create 5 more labels in Gmail and apply them to the message, you'll see 5 more copies of the message in Unread.

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