Category: Installation, Version 5.x

SimpleSYN version 5 supports the following versions of Microsoft Outlook:

  • Microsoft® Outlook® 2010 (32-bit/64-bit, Click-to-Run)
  • Microsoft® Outlook® 2013 (32-bit/64-bit) 
  • Microsoft® Outlook® 2016 (32-bit/64-bit)
  • Office 365® with Outlook®
  • Outlook® 2019 (32-bit/64-bit)

Category: Installation, Version 4.x, Version 5.x

SimpleSYN requires an active internet connection for its operation. The internet connection is required to connect to a central server operated by SimpleSYN. This server is used to help in the establishment of a direct connection between the SimpleSYN server and SimpleSYN client. Only data required for establishing the connection is transferred via this central server. After establishing an connection, SimpleSYN uses the best connectivity available.

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. because of Firewalls NAT or Routers are blocking the direct connection, SimpleSYN uses a relay server as a last resort. This relay server allows SimpleSYN to communicate even if only outgoing traffic is allowed from your networks.

In either case the connection between SimpleSYN will always  use an SSL/TLS encryption respectively.

Your Outlook data is never transferred in clear-text nor stored permanently on our Internet servers (no Cloud).

Note: Proxy-Servers are not supported by SimpleSYN. SimpleSYN must communicate with our servers located at services.simplesyn.net.

SimpleSYN requires the following outbound TCP connections:

9235, 9236,
9235, 9236
49152 – 59152

Category: Installation, Version 5.x

SimpleSYN supports the following versions of Microsoft® Windows® and Outlook® 

  • Microsoft® Windows®
    • Windows® 10 Anniversary Update or newer (32-bit/64-bit)
    • Windows® 8.1 (32-bit/64-bit)
    • Windows® 7 SP1 (32-bit/64-bit)
  • Microsoft® Windows® Server
    • Windows® Server 2016
    • Windows® Server 2012
  • Microsoft® Outlook®
    • Office 365® with Outlook®
    • Outlook® 2019 (32-bit/64-bit)
    • Outlook® 2016 (32-bit/64-bit)
    • Outlook® 2013 (32-bit/64-bit)
    • Outlook® 2010 (32-bit/64-bit)

For the program to run smoothly there are the following requirements

  • A active Internet connection is required during the synchronization (SimpleSYN Business and SimpleSYN Standard) and the PCs must be turned on at the same time (no cloud service is used)

Please note:

  • The Windows service is only available in the SimpleSYN business version. In the SimpleSYN standard version, a Windows user must be logged in to the computer for synchronization
  • You cannot synchronize your Google calendar or iCloud data with SimpleSYN

Category: Troubleshooting, Version 2.0, Version 2.1, Version 3.0, Version 3.5, Version 4.x, Version 5.x

The message "destination folder was not found" appears if the top folder level in Outlook (eg "Personal folders") has been named differently on the SimpleSYN client and SimpleSYN server. In this case, SimpleSYN can not assign the destination folders automatically because no new PST files are created by SimpleSYN.

Click on the "Select a different target folder" link and select the folder where you want to sync.

Alternatively, you can name the highest folder level identically on all computers in advance.

Category: General, Version 3.0, Version 3.5, Version 4.x, Version 5.x

Press on your server computer inside of SimpleSYN’s main window once the “Alt” key to open the main menu and choose the menu item “View > State Properties.

If you open the state database properties (Tab “General”) on the server, do you see any old client that is not synchronized anymore (you can see this from the last synchronization date)? 

If yes, please click on this client and click on “remove”. This will delete the status for the selected client will make some space available in the status database.

Category: Operation, Version 2.0, Version 2.1, Version 3.0, Version 3.5, Version 4.x, Version 5.x

If a computer is not reachable over network or Internet, then the synchronization is carried out as soon as the computer is back in the network or online and SimpleSYN has established a connection with the SimpleSYN server.

All Outlook items that were changed or created up to that point are automatically recognized and synchronized by SimpleSYN.

Category: Operation, Version 4.x, Version 5.x

You can limit the access the SimpleSYN server gets to certain Outlook folders. Follow these steps:

  1. Switch to your SimpleSYN client computer
  2. Click on the menu point “Synchronization Settings“
  3. Click on “Advanced Client Settings“
  4. Activate the check box  “Restrict available folders to selected folders“

Then choose in the folder list which folders the server can have access to. To do so check the check boxes next to the folders.