Bug unread mails

Help !!!

We are using Notes 6.0

We notice 2 problems:

1)If I open an unread e-mail. Read it and close it it still stays unread.

2)If I read all the mails and after certain time (not always the same time) some of the old read mails change to unread.

Thank you Very much.

Subject: Bug unread mails

Still a problem under 6.0.1 & using the new mail template too.

Subject: RE: Bug unread mails

Fixed in 6.0.3/6.5.

The problem is related to mails with a return receipt inside.

Regards,

Simone