java - IMAP, setting custom mail flag support on exchange server? -

is example below (java, java mail api) supported exchange server? exchange server support setting custom mail flags?

javamail: setting custom flags on imap mail , searching mails custom flags

flags processedflag = new flags("processed"); folder.setflags(msgs, processedflag, true); // or msg.setflags(processedflag, true);