Domino 8.5 SELECT Failure, Cannot Select Mailbox: Entry Not Found in Index

Problem opening IMAP INBOX with Domino 8.5

If you are getting an error

Mail was unable to open this mailbox on the server “domino-server.yourdomain.com”.

The server returned the error: SELECT failure, cannot select mailbox: Entry not found in index

Most likely the IMAP INBOX for that user has been corrupted. The solution is simple and quick even on large mailboxes

  • Disable IMAP NSF support for user’s mailfile by issuing the command: load convert -e- …mail/usermail.nsf
  • Enable IMAP NSF support for user’s mailfile by issuing the command: load convert -e ..mail/usermail.nsf