outlook.com airsync not syncing anymore

Mail
1

I’ve connected my outlook.com account and it synced without any problem. But now i cant sync anything. It suddenly stops working.
I’ve also tried the new version linked in this post: https://forum.emclient.com/emclient/topics/outlook-com-account-wont-sync-properly

In the console ouput it throws this message:
11:36:16 Outlook [AirSync]  MailExceptions.ConnectionException: Die zugrunde liegende Verbindung wurde geschlossen: Unerwarteter Fehler beim Senden… —> System.Net.WebException: Die zugrunde liegende Verbindung wurde geschlossen: Unerwarteter Fehler beim Senden… —> System.IO.IOException: Von der Übertragungsverbindung können keine Daten gelesen werden: Eine vorhandene Verbindung wurde vom Remotehost geschlossen. —> System.Net.Sockets.SocketException: Eine vorhandene Verbindung wurde vom Remotehost geschlossen
11:36:16    bei System.Net.Sockets.Socket.EndReceive(IAsyncResult asyncResult)
11:36:16    bei System.Net.Sockets.NetworkStream.EndRead(IAsyncResult asyncResult)
11:36:16    — Ende der internen Ausnahmestapelüberwachung —
11:36:16    bei System.Net.TlsStream.EndWrite(IAsyncResult asyncResult)
11:36:16    bei System.Net.PooledStream.EndWrite(IAsyncResult asyncResult)
11:36:16    bei System.Net.ConnectStream.WriteHeadersCallback(IAsyncResult ar)
11:36:16    — Ende der internen Ausnahmestapelüberwachung —
11:36:16    bei System.Net.HttpWebRequest.EndGetResponse(IAsyncResult asyncResult)
11:36:16    bei MailClient.Protocols.AirSync.Protocol.LiveLoginRequest.GetResponse(CancellationToken cancellationToken)
11:36:16    bei MailClient.Protocols.AirSync.AirSyncHmMailSynchronizer.b__1(CancellationToken
cancellationToken)
11:36:16 bei
MailClient.Protocols.AirSync.Protocol.DeltaSyncCommandRequest.GetResponse(CancellationToken
cancellationToken)
11:36:16 bei
MailClient.Protocols.AirSync.AirSyncItemSynchronizer2.GetSyncKey(Folder folder, IItemContext context, CancellationToken cancellationToken)<br>11:36:16 bei MailClient.Protocols.AirSync.AirSyncItemSynchronizer2.Synchronize(IItemSynchronizeContext1 synchronizeContext, Folder folder, CancellationToken cancellationToken)<br>11:36:16 bei MailClient.Protocols.Common.ItemSynchronizer2.<>c DisplayClass30.<>c DisplayClass35.b__2c(WorkerStatus
status, CancellationToken cancellationToken)
11:36:16 bei
MailClient.Protocols.AirSync.AirSyncGenericCommand.Execute(WorkerStatus
status)
11:36:16 — Ende der internen Ausnahmestapelüberwachung
—
11:36:16 bei
MailClient.Protocols.AirSync.AirSyncGenericCommand.Execute(WorkerStatus
status)
11:36:16 bei MailClient.Commands.Command.Process(WorkerStatus
status)

Calendar and contacts are still syncing, so the login works as expected.
Can anyone help me? :frowning:

2

Hi Phil, this unfortunately seems to be a server issue, as the log points to a forced connection closing, forced by the remote host.
Are you using any security software on your computer, e.g. firewall, proxy, antivirus with email protection?

Thank you,
Paul

3

Hi Paul,
thx for your reply. I’ve installed 360 total security - but tried it with complete deactivation without luck :frowning:
Firewall is default windows 8.1, no proxy.
thx & kind regards

4

Hi again, what version of eM Client are you currently using on your computer? Can you please check for the exact version number in Help > about?

Thank you,
Paul

5

Hey Paul, 
currently i am using 6.0.21372.0 - got this update this week.
The problem is still there, but i found something interesting:

I installed Fiddler4 to see what is going on with the connection to outlook.com. Therefore I checked the “Decrypt HTTPS traffic” option in Fiddler Options. Guess what’s happening => emclient starts syncing outlook.com without any problem. 
It’s still syncing if I close Fiddler.

kind regards,
Phil