FAQ

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.

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

In this case there is an problem on the file "SimpleSYN.config", so SimpleSYN can not be started anymore.

To repair SimpleSYN on this computer, please follow these steps:

  • Open a Windows Explorer and navigate to this directory:

    For Version 4:
    C:\Users\[Username]\AppData\Local\SimpleSYN\4.0.0.0\SimpleSYN

    For Version 5:
    C:\Users\[Username]\AppData\Local\SimpleSYN\5.0.0.0\SimpleSYN

  • In this directory you will find the file: “SimpleSYN.config” (may also be shown as just “SimpleSYN” without the extension .config).
  • Delete this file
  • Restart SimpleSYN

Then SimpleSYN starts normally again. You would then need to activate SimpleSYN only once with your license file.

If you no longer have the license, contact our support.

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

SimpleSYN supports the following versions of Microsoft Outlook:

Version 5:

  • 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)

Version 4:

  • Microsoft® Outlook® 2007
  • Microsoft® Outlook® 2010 (32-bit/64-bit, Click-to-Run)
  • Microsoft® Outlook® 2013 (32-bit/64-bit) 
  • Microsoft® Outlook® 2016 (32-bit/64-bit)

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

SimpleSYN can not be used to synchronize between a POP3 account and an IMAP account. Use the same account type on the PCs (either POP3 or IMAP).

If you use a POP3 account on all PCs, you can also synchronize the e-mail folders (for example, Inbox) with SimpleSYN.

If you use an IMAP account on your PC, then the e-mail folders are automatically synchronized by default, since an IMAP account is server-based. The e-mail folders of an IMAP account should therefore not be selected in addition to the synchronization, since otherwise it can lead to complications with SimpleSYN (as of version 5, e-mail folders of an IMAP account are also no longer selectable). If you use an IMAP account, SimpleSYN allows you to synchronize all other local folders (such as tasks, calendars, contacts, or notes).

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

If you want to exit SimpleSYN if Outlook is closed, follow these steps:

  1. Right-click on the SimpleSYN icon in the Windows notification area and choose “Exit”
  2. Close any Outlook window
  3. Open the SimpleSYN Add-In configuration file with a text editor like notepad. The configuration file can be found in:

    At Version 4:
    C:\Users\[User name]\AppData\Local\SimpleSYN\4.0.0.0\[Outlook profile name].addin.config

    At Version 5:
    C:\Users\[User name]\AppData\Local\SimpleSYN\5.0.0.0\[Outlook profile name].addin.config


  4. Add the following code in the section between <appSettings> and </appSettings>:
    <!-- SimpleSYN is exited when Outlook is being closed. -->
    <add key="AutoExitSimpleSyn" value="true" />
    <!-- SimpleSYN is started if the Add-In is being loaded. -->
    <add key="AutoStartSimpleSyn" value="true" />
  5. Open Outlook again.

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: Purchase, Version 4.x, Version 5.x

You`ll need a license per computer you want to synchronize. 

For example: If you wish to synchronize Outlook between your laptop and your desktop computer, you will need two licenses. If you want to synchronize 3 computers, you`ll need 3 licenses, etc. If you want to use SimpleSYN on a terminal server with different users, you need a license for each user.

  • A SimpleSYN standard license costs 24.95 € per computer (including 19% VAT)
  • A SimpleSYN business license costs 34.95 € euros per computer (including 19% VAT

Ask about our discounts for school, university students, teachers and multiple licenses

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

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 5.x

For SimpleSYN Version 5

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

For SimpleSYN Version 4

System requirements for SimpleSYN:

  • 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®
    • Outlook® 2016 (32-bit/64-bit)
    • Outlook® 2013 (32-bit/64-bit)
    • Outlook® 2010 (32-bit/64-bit)
    • Outlook® 2007

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:

    • In the SimpleSYN standard edition a Windows user must be logged in and SimpleSYN must be running
    • You cannot synchronize your Google calendar or iCloud data with SimpleSYN
    • No proxy servers are supported