Hi Ralph! There is an email, which filename is:
1543935543.M447415P13997.mymail,S=726,W=748:2,Sa Then i move this email to another IMAP-Folder, and then there is the filename 1543935543.M447415P13997.mymail,S=726,W=748:2, As expected, the seen-flag disappeared... the same as thunderbird shows. This happens if i move the file with thunderbird with drag&drop and in horde and in androids gmail-app. The mistake happens in dovecot or pigeonhole. As you can see, i user maildir-format. Jakob Am 04.12.18 um 19:10 schrieb Ralph Seichter: > * Jakobus Schürz: > >> The \Recent flag ist set and the \Seen-Flag is removed in the new >> folder. So it is not a problem of thunderbird. > Did you mention your data storage format yet? If you use Maildir, Flags > are stored as part of the physical file name. For example, the name > "1539996635.M698476P4944.foo,S=45171,W=45803:2,RS" indicates that the > message was seen ('S') and has been replied to ('R'). Check if the file > names match what you see in your MUA. > > Files named "dovecot-keywords" are used to map additional letters to > flags (used to store Thunderbird's "$label1" etc.). If the keywords file > get messed up, it can cause confusion, and because there can be keywords > files with varying content per folder, letters in file names can have > different meanings in different directories. Moving files around can be > therefore be tricky. > > Also, I wonder if the delivery mechanism might matter. I use Dovecot's > LMTP. > > -Ralph