Error 5201 windows llive account

emClient constantly throws sync-error with windows live account

emClient version: 6.0.24928.0

OS version: Windows 10.0.10586 Build 10586 (Home x64)

Security software: Kaspersky Internet Security 2016

error log:
07:50:11 Online-Status: geändert zu Online wegen NetworkAvailability 07:50:11 test123@live.com [AirSync]  Synchronisiere Ordnerliste
07:50:14 test123@live.com [AirSync]  Synchronisiere Ordnerliste
07:50:15 test123@live.com [AirSync]  Synchronisiere Ordner ‘test123@live.com/Posteingang/’ 
07:50:19 test123@live.com [AirSync]  Synchronisiere Ordner ‘test123@live.com/Gelöschte Objekte/’ 
07:50:20 test123@live.com [AirSync]  Synchronisiere Ordner ‘test123@live.com/Gesendete Objekte/’ 
07:50:24 test123@live.com [AirSync]  MailExceptions.ConnectionException: Ungültige Daten beim Decodieren gefunden. —> System.IO.InvalidDataException: Ungültige Daten beim Decodieren gefunden.
07:50:24    bei MailClient.Protocols.AirSync.AirSyncItemSynchronizer2.GetSyncKey(Folder folder, IItemContext context, CancellationToken cancellationToken) 07:50:24 &nbsp; &nbsp;bei MailClient.Protocols.AirSync.AirSyncItemSynchronizer2.Synchronize(IItemSynchronizeContext1 synchronizeContext, Folder folder, CancellationToken cancellationToken) 07:50:24 &nbsp; &nbsp;bei MailClient.Protocols.Common.ItemSynchronizer2.<>c__DisplayClass2e.<>c__DisplayClass33.b__2a(WorkerStatus status, CancellationToken cancellationToken)
07:50:24 bei MailClient.Protocols.AirSync.AirSyncGenericCommand.Execute(WorkerStatus status)
07:50:24 — Ende der internen Ausnahmestapelüberwachung —
07:50:24 bei MailClient.Protocols.AirSync.AirSyncGenericCommand.Execute(WorkerStatus status)
07:50:24 bei MailClient.Commands.Command.Process(WorkerStatus status)


I have already tried to disable Kaspersky - without success.

Thanks for your help.

May well be related to this issue: https://forum.emclient.com/emclient/topics/em-client-deletes-inbox-emails-then-downloads-them-severa… - you could try switching to IMAP as per the comments in that thread

Hello Dexter,
the issue here is indeed with AirSync, which is a protocol that Microsoft no longer supports for its mail accounts.
Set up your account anew manually as Exchange or IMAP.

Regards,
Olivia