
Outlook 2010: " Microsoft Outlook has encountered a problem and needs to close. There may be a few variations of this message depending on which Outlook version you use. ost) was deleted or damaged as the result of incorrect uninstallation or reinstallation of Outlook.Īnyway, whatever the reason is, the outcome is the same - you cannot open the Outlook window because of this error: " Cannot start Microsoft Outlook. Other reasons may be when you run Outlook in the compatibility mode, or if you are using a profile created in an older Outlook version, or if the Outlook data file (.pst or. No one knows the exact reason why this happens, but all versions of Microsoft Outlook from 2003 to the newest Outlook 2019 may be affected. A good indication that the file is corrupted is when its size is 0 KB.

The main symptom of this problem is very obvious and easily recognizable: you click Outlook's icon, an hourglass appears and is hanging for a while, and then you get the "Cannot start Microsoft Office Outlook" error.Īccording to Microsoft, the major cause of this issue is a corrupted Navigation Pane settings file - profilename.xml, where "profilename" is the name of your Outlook profile. SimpleSYN requires the following outbound TCP connections."Unable to start Microsoft Outlook" error - causes and symptoms In all previous versions, SimpleSYN must communicate with our servers located at.

Note: SimpleSYN only supports proxy servers as of version 5. Your Outlook data is never transferred in clear-text nor stored permanently on our Internet servers (no Cloud). In either case the connection between SimpleSYN will always use an SSL/TLS encryption respectively. This relay server allows SimpleSYN to communicate even if only outgoing traffic is allowed from your networks. because of Firewalls NAT or Routers are blocking the direct connection, SimpleSYN uses a relay server as a last resort. If SimpleSYN Business is used to synchronize via the Internet and it is impossible to create a direct connection between SimpleSYN server and SimpleSYN client, e.g. After establishing an connection, SimpleSYN uses the best connectivity available. Only data required for establishing the connection is transferred via this central server. This server is used to help in the establishment of a direct connection between the SimpleSYN server and SimpleSYN client. The internet connection is required to connect to a central server operated by SimpleSYN. SimpleSYN requires an active internet connection for its operation. Category: Installation, Version 4.x, Version 5.x, Version 6.x
