Mailsring scans messages forever

Description

Mailspring takes forever to scan for messages for one of my account but didn’t find any available fixes for it.
See the log messages and the configuration of the mail server below. Please help me :pray:

Log messages

13556 [2022-03-18 09:27:35.813] [background] [info] --sleeping
13556 [2022-03-18 09:29:35.813] [background] [info] Syncing folder list...
13556 [2022-03-18 09:29:36.222] [background] [info] syncFolderUIDRange for INBOX, UIDs: 1 - 27973, Heavy: false
13556 [2022-03-18 09:29:36.291] [background] [info] - INBOX: remote=1969, local=0, remoteUID=bN53268R19o96pyN1ET3gVXzkrTo39tuBFeLGuzfJ
13556 [2022-03-18 09:29:36.294] [background] [info] - Fetching full headers for 1969 (of 1969 needed)
13556 [2022-03-18 09:29:36.631] [background] [critical] 
***
*** Mailspring Sync 
*** An exception occurred during program execution: 
*** {"debuginfo":"syncFolderUIDRange - fetchMessagesByUID (heavy)","key":"ErrorFetch","retryable":true,"what":"Unknown exception"}
***

13556 [2022-03-18 09:29:36.631] [background] [critical] *** Stack trace (line numbers are approximate):
*** 799  SyncWorker::syncFolderUIDRange()
*** 358  SyncWorker::syncNow()
*** 202  runBackgroundSyncWorker()
*** 692  ::operator()
*** 210  _Pad::_Call_func()
***

13556 [2022-03-18 09:29:36.631] [background] [info] --sleeping

The mail server config is the following:

[IMAP]
Port: 993
Security: SSL/TLS

[SMTP]
Port: 587
Security: SARTTLS

Setup

  • OS and Version: Microsoft Windows 10 Entreprise
    • Installation Method: installer.exe
  • Mailspring Version: 1.10.1