Observed in: Exchange (outlook.office365.com:993)
Reported: No
Status: Unknown
Comment: None
Proposed solution(s):
Consume the trailing space (making sure not to reproduce the defect.) Implemented in https://github.com/emersion/go-imap/pull/541, https://github.com/duesee/imap-codec/pull/468, and [Ruby](https://bugs.ruby-lang.org/issues/13649).
See https://github.com/emersion/go-imap/issues/540