Hi,
> Does anybody has an idea why these mailboxes arn't marked with a "N"?
I am not a IMAP guru but I have a guess. Your accessing the Mailbox with
another programm. And this eMail programm unsets N, which is written down
in the IMAP RFC. The N should be droped as soon as the eMail is 'seen'.
If I tell total bullshit please enlighten me.
Honestly,
Thomas