When marking a message as read in a shared mailbox, no events are triggered by Cyrus. As opposed to marking a message read in a personal folder where a "MessageRead" is sent out.

Here's the IMAP log from the operation in question where no events got recorded in the log:

C: A0005 SELECT "Shared Folders/shared/Collected"
S: * 2 EXISTS
S: * 0 RECENT
S: * FLAGS (\Answered \Flagged \Draft \Deleted \Seen)
S: * OK [PERMANENTFLAGS (\Answered \Flagged \Draft \Deleted \Seen \*)] Ok
S: * OK [UNSEEN 2] Ok
S: * OK [UIDVALIDITY 1429518712] Ok
S: * OK [UIDNEXT 3] Ok
S: * OK [HIGHESTMODSEQ 16] Ok
S: * OK [URLMECH INTERNAL] Ok
S: * OK [ANNOTATIONS 65536] Ok
S: A0005 OK [READ-WRITE] Completed
C: A0006 UID STORE 2 +FLAGS.SILENT (\Seen)
S: A0006 OK Completed

Steps to reproduce and test:

1. Enable event notifications for Cyrus (event_notifier: log in /etc/imapd.conf)
2. Create a "Shared Mail Folder" in Webadmin enabled for email receiving:
   • Folder Name: Collected
   • Email Address: collected@example.org
   • Recipient(s) Access List: collected@example.org
   • IMAP Access Rights: anyone (lrswiptn)
3. Log in as regular user john.doe@example.org
4. Send a message to collected@example.org
5. Subscribe to the shared folder "Shared Folders/shared/Collected"
6. Open the message list of the shared folder in mail view
7. Mark the new test message as read
8. Check logs in /var/log/maillog

Expected results:

• Log entry from notifyd with "event":"MessageRead"
• uri paramater of the JSON content starts with imap://<hostname>/shared/Collected%40example.org