IMAP Syncing Issues on Windows, not on Mac **Strange**

Problem

Syncing issue after some days. “Account State: sync_error” in the error log.
This happens only on Windows PCs. On Mac I have the same accounts added and there is no syncing problem.

Context

The issue just happens after some days of account modification. I manage the account and add the password again and everything works perfect. But after some days, there is the issue again. ONLY on Windows PCs.

Email Provider

All accounts are IMAP, using port 143 for incoming, 587 for sending. StartSSL on both.
Address for incoming and outgoing is mail.company.gr
The accounts are similar to:
name1@company.gr
name2@company.gr
name3@company.gr

Setup

  • OS and Version: Windows 10
  • Installation Method: Installer
  • Mailspring Version: Mailspring PRO Version: 1.10.5-1ce06f18

Again, on MacOS13 and Mailspring Version 1.10.5 (1.10.5) there are no syncing issues.

Error Log

Mailspring Version: 1.10.5-1ce06f18
Platform: win32
Account State: sync_error
Account Provider: imap
IMAP Server: mail.company.gr
SMTP Server: mail.company.gr

7888 [2022-11-04 16:31:54.652] [foreground] [info] Idle exited with code 0
7888 [2022-11-04 16:31:54.681] [foreground] [info] syncFolderChangesViaCondstore - INBOX: modseq 1331 to 1331, uidnext 540 to 540
7888 [2022-11-04 16:31:54.682] [foreground] [info] Idling on folder INBOX
7888 [2022-11-04 16:32:11.780] [background] [info] Syncing folder list…
7888 [2022-11-04 16:32:11.870] [background] [info] syncFolderChangesViaCondstore - INBOX: modseq 1331 to 1331, uidnext 540 to 540
7888 [2022-11-04 16:32:11.900] [background] [info] syncFolderChangesViaCondstore - INBOX.Sent: modseq 57 to 57, uidnext 46 to 46
7888 [2022-11-04 16:32:11.929] [background] [info] syncFolderChangesViaCondstore - INBOX.Drafts: modseq 439 to 439, uidnext 147 to 147
7888 [2022-11-04 16:32:11.958] [background] [info] syncFolderChangesViaCondstore - INBOX.Trash: modseq 313 to 313, uidnext 334 to 334
7888 [2022-11-04 16:32:11.987] [background] [info] syncFolderChangesViaCondstore - INBOX.Spam: modseq 66 to 66, uidnext 23 to 23
7888 [2022-11-04 16:32:12.016] [background] [info] syncFolderChangesViaCondstore - INBOX.Mailspring: modseq 1 to 1, uidnext 1 to 1
7888 [2022-11-04 16:32:12.045] [background] [info] syncFolderChangesViaCondstore - INBOX.Mailspring.Snoozed: modseq 1 to 1, uidnext 1 to 1
7888 [2022-11-04 16:32:12.045] [background] [info] Sync loop deleting unlinked messages with phase 2.
7888 [2022-11-04 16:32:12.046] [background] [info] Sync loop complete.
7888 [2022-11-04 16:33:54.770] [foreground] [info] Idle exited with code 0
7888 [2022-11-04 16:33:54.802] [foreground] [info] syncFolderChangesViaCondstore - INBOX: modseq 1331 to 1331, uidnext 540 to 540
7888 [2022-11-04 16:33:54.803] [foreground] [info] Idling on folder INBOX
7888 [2022-11-04 16:34:12.051] [background] [info] Syncing folder list…
7888 [2022-11-04 16:34:12.142] [background] [info] syncFolderChangesViaCondstore - INBOX: modseq 1331 to 1331, uidnext 540 to 540
7888 [2022-11-04 16:34:12.174] [background] [info] syncFolderChangesViaCondstore - INBOX.Sent: modseq 57 to 57, uidnext 46 to 46
7888 [2022-11-04 16:34:12.206] [background] [info] syncFolderChangesViaCondstore - INBOX.Drafts: modseq 439 to 439, uidnext 147 to 147
7888 [2022-11-04 16:34:12.235] [background] [info] syncFolderChangesViaCondstore - INBOX.Trash: modseq 313 to 313, uidnext 334 to 334
7888 [2022-11-04 16:34:12.266] [background] [info] syncFolderChangesViaCondstore - INBOX.Spam: modseq 66 to 66, uidnext 23 to 23
7888 [2022-11-04 16:34:12.295] [background] [info] syncFolderChangesViaCondstore - INBOX.Mailspring: modseq 1 to 1, uidnext 1 to 1
7888 [2022-11-04 16:34:12.324] [background] [info] syncFolderChangesViaCondstore - INBOX.Mailspring.Snoozed: modseq 1 to 1, uidnext 1 to 1
7888 [2022-11-04 16:34:12.325] [background] [info] Sync loop deleting unlinked messages with phase 1.
7888 [2022-11-04 16:34:12.325] [background] [info] Sync loop complete.