No way to suppress the "Password Required" prompt during a server outage - and the Services checkboxes are greyed out

Mail
1

eM Client 10.4.5606 (58d51c0), Windows 11 Pro, IMAP account. Current Windows build.

My mail server is currently rejecting authentication (server-side outage, credentials unchanged). Every failed IMAP login raises the modal “Password Required” dialog. Cancelling it logs AuthenticationAbortedException from ConnectionPoolEntry … ThrowNotOKServerResponseReacquireCredentialsFailed, reached via ImapMailSynchronizer.StoreAsync > UploadAsync > ImapActionCommand - so a queued upload keeps retrying and the dialog keeps coming back, independently of the sync interval.

Already ruled out:

  • Settings > General > General > Operations Window > “Show window when error occurs”: governs the Operations window only, no effect on this modal.
  • Sync interval: irrelevant, the retrying action command is not on that schedule.
  • Menu > Accounts > account > General > Services: the IMAP and SMTP checkboxes are greyed out and cannot be unticked, so the usual advice to disable the service does not apply to me.

Two questions:

  1. Is there any supported way to suppress the credential prompt while the account stays enabled?
  2. Why are the Services checkboxes greyed out, and how do I make them editable?

And a request: a temporary “pause account / pause sync” option would solve this whole class of problem.