UNREAD incoming messages are marked itself to READ status after x minutes

All incoming mails are changed to read status itself without even clicking on them after approx 50 minutes in Outlook 2007. The same happens for the same account in webmail cllient (Horde / RoundCube).
Mail server is probably Postfix.
It is an IMAP account.
Automatic mark message as read is turn off.
Who is Participating?
Mike ThomasConnect With a Mentor ConsultantCommented:
Does anyone else have access to their mailboxes? that might be reading the emails?
Mike ThomasConsultantCommented:
Does the user have any mobile device they are using to view emails? if so check that.

adrianb74Author Commented:
Yes, user uses Nokia to read emails. BUT another user have the same problem with his account and dont use mobile phone for reading emails. Also there other accounts on the same server which dont have this problem. So the problem is related only to 2 accounts.
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Alan HardistyCo-OwnerCommented:
Please refer to the Automatically Mark Messages section in the following Microsoft Link:
adrianb74Author Commented:
TO MojoTech: User reads mails via Outlook, Mobile Nokia and she has connected this account through Gmail account. Also it has been changed password for the account to eliminate that someone else reads mails. I think that there is something wrong with setup on server for this account - which administrator of this server refuses.
adrianb74Author Commented:
It was the gmail. User reads the same email account through Outlook and Gmail. When gmail check (each 50 min) the POP3 account on the mail server the status of new mail message in Outlook was changed to READ without user action. Probably it is also becasue this account is setup as IMAP in Outlook and POP3 in Gmail. Thanks MojoTech.
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