[Dovecot] All mails unread after short while

[Willie Gillespie]

On 3/3/2011 10:06 AM, francwalter at gmx.net wrote:
> But anyway, where can i find the place where the mails are set to read or unread?

Pulling this out of memory, so someone can correct me if I'm wrong.

You mentioned earlier that you were using the Maildir format.
Look in the /cur part of the mail folder.  The file will end with 
"2,(flags)" where (flags) are:

Flag "P" (passed): the user has resent/forwarded/bounced this message to 
someone else.
Flag "R" (replied): the user has replied to this message.
Flag "S" (seen): the user has viewed this message, though perhaps he 
didn't read all the way through it.
Flag "T" (trashed): the user has moved this message to the trash; the 
trash will be emptied by a later user action.
Flag "D" (draft): the user considers this message a draft; toggled at 
user discretion.
Flag "F" (flagged): user-defined flag; toggled at user discretion.

Willie

Copied some info from http://cr.yp.to/proto/maildir.html