Installation

Category: Installation, Version 5.x

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

  • Microsoft® Windows®
    • Windows® 10 , version 1909 or newer (x86/x64)
  • Microsoft® Windows® Server
    • Windows® Server 2016 (x86/x64)
    • Windows® Server 2012 (x86/x64)
  • Microsoft® Outlook®
    • Office 365® with Outlook® (x86/x64)
    • Outlook® 2019 (x86/x64)
    • Outlook® 2016 (x86/x64)
    • Outlook® 2013 (x86/x64)

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: Installation, Version 4.x

In that case, you probably have an Office 365 version from the Microsoft App Store installed.

Programs from the Microsoft App Store can not currently recognize SimpleSYN version 4 (these programs are isolated from the rest of the system). Office 365 version from the Microsoft App Store supports SimpleSYN version 5.

Please reinstall Outlook / Office at https://www.office.com/setup

Then everything should work and go through the installation.

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

SimpleSYN requires a unique configuration and a unique certificate for each PC.

SimpleSYN must be completely reset to one of the clients. Then SimpleSYN can be reinstalled and set up.

Follow these steps:

  • Uninstall SimpleSYN first under the Windows Control Panel "Programs / Features" or under Apps on Windows 10
  • Then enter the following line in Windows Explorer:
    %localappdata%
  • Find the folder SimpleSYN here and delete this folder.

Then delete the SimpleSYN certificate as follows:

  • Open the Internet Explorer
  • Go to "Internet Options"
  • Click the "Content" tab
  • Click on "Certificates"
  • In the next window under "Display name" search for the SimpleSYN entries, mark the respective entry and click on "Remove"

Then you can reinstall SimpleSYN and set it up again. The initial synchronization will be run once again.

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

You can easily upgrade Outlook (Office). The previous version does not need to be uninstalled. SimpleSYN automatically detects the new Outlook version.

Note:
Install Outlook in the same bit version as the previous version, either in 32-bit or 64-bit.

If you want to install Outlook in a different bit version than the previous version, first uninstall SimpleSYN and reinstall SimpleSYN after the Outlook update.

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: SimpleSYN only supports proxy servers as of version 5. In all previous versions, SimpleSYN must communicate with our servers located at services.simplesyn.net.

SimpleSYN requires the following outbound TCP connections.

For Version 4:

DNSIP-AddressPorts
SimpleSYN
Server
services.simplesyn.net
services2.simplesyn.net
137.117.225.142
104.46.50.232
9235, 9236,
3478
SimpleSYN
Clients
services.simplesyn.net
services2.simplesyn.net
turn1.simplesyn.net
turn2.simplesyn.net
137.117.225.142
104.46.50.232
52.166.58.186
52.166.62.197
9235, 9236
3478
49152 – 59152

For Version 5:

DNSIP-AddressPorts
SimpleSYN
Server
services.simplesyn.net
services2.simplesyn.net
137.117.225.142
104.46.50.232
443
443
SimpleSYN
Clients
services.simplesyn.net
services2.simplesyn.net
turn1.simplesyn.net
turn2.simplesyn.net
137.117.225.142
104.46.50.232
52.166.58.186
52.166.62.197
443
443
49152 – 59152

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

SimpleSYN is a Client-/Server application. In your SimpleSYN network one PC must be configured as a server. The SimpleSYN server must be authorized in the Windows Firewall and/or Desktop firewall.

Please make sure that SimpleSYN is allowed in your personal firewall.

SimpleSYN must communicate with our servers located at services.simplesyn.net.

SimpleSYN requires the following outbound TCP connections.

For Version 4:

DNSIP-AddressPorts
SimpleSYN
Server
services.simplesyn.net
services2.simplesyn.net
137.117.225.142
104.46.50.232
9235, 9236,
3478
SimpleSYN
Clients
services.simplesyn.net
services2.simplesyn.net
turn1.simplesyn.net
turn2.simplesyn.net
137.117.225.142
104.46.50.232
52.166.58.186
52.166.62.197
9235, 9236
3478
49152 – 59152

For Version 5:

DNSIP-AddressPorts
SimpleSYN
Server
services.simplesyn.net
services2.simplesyn.net
137.117.225.142
104.46.50.232
443
443
SimpleSYN
Clients
services.simplesyn.net
services2.simplesyn.net
turn1.simplesyn.net
turn2.simplesyn.net
137.117.225.142
104.46.50.232
52.166.58.186
52.166.62.197
443
443
49152 – 59152