In version 2.2.13, with acl = vfile, setting a differential ACL permission doesn't work if there are no permissions set yet. Example IMAP log:

b1 GETACL test

• ACL test valodim lrwstipekxacd b1 OK Getacl completed. b2 SETACL test valodim -l b2 OK Setacl complete. b3 GETACL test
• ACL test valodim lrwstipekxacd b3 OK Getacl completed.

My expectation was that the file would be created with default permissions, and the requested change then applied. However, no acl permission is set and no vfile is created for this mailbox in the process.

This does work as expected (and a file is created) if I set a non-differential ACL first:

b4 SETACL test valodim lrwstipekxacd b4 OK Setacl complete. b5 GETACL test

• ACL test valodim akxeilprwtscd b5 OK Getacl completed. b6 SETACL test valodim -l b6 OK Setacl complete. b7 GETACL test
• ACL test valodim akxeiprwtscd b7 OK Getacl completed.

• V