[Dovecot] Message Flag definitions

Hello,

I am in charge of migrating our mail system from dovecot to another server, and I am having to write a script to do this as tools like imapsync are too slow.

What I am trying to find is the definitions of the flags that dovecot adds to the Maildir file name it uses for the IMAP messages.

For example what the a and b mean in the following:

1176236036.P7260Q1438.sucia:2,RSab

I am looking for all definitions not just a and b.

Thanks

Chris chris@rosepointnav.com