Support
Before forwarding
Open Gmail, select the threads, then open ThreadRelay. Confirm that the Gmail tab account matches the account shown in the extension.
Why a run may stop
ThreadRelay stops before sending when selected thread IDs belong to a different connected Gmail account. Temporary Gmail limits are paced and retried automatically. Delivery failures and optional label/archive warnings are reported separately.
Contact
Email support@threadrelay.app with the run date and the visible error message. Do not send private email contents unless support explicitly asks for one specific message and you consent.