Knowledgebase

KB0150 - Domain names and ports that should be opened for OnePlaceMail App

Affects:

OnePlaceMail for Outlook App

Issue:

When attempting to sign in, you are presented with a message that states that ''We are unable to connect to our services. Please verify you that you have internet connectivity and that our domain addresses are not blocked by your firewall"

When attempting to sign in, you are presented with the following error:

Firewall message

Workaround

Please contact your network administrator to add the following domain names and ports as an exception or whitelist them in your organization firewall:

  • https://login.microsoft.com
  • https://graph.microsoft.com
  • https://static2.sharepointonline.com
  • *.oneplaceapps.net
  • Port 443 (HTTPS protocol)

We recommend that you use * to enable everything from oneplaceapps.net.

If you don't want to use * to enable everything from oneplaceapps.net, you can add the following list of service names as an exception/whitelist in your firewall:

https://cinnamon.oneplaceapps.net
https://cdn.oneplaceapps.net
https://api.oneplaceapps.net

Should you choose this approach, please keep checking this page for additional endpoints in the future.

Without access to those endpoints, you will be unable to use the OnePlaceMail App. This means your users will not be able to access their subscription and save files to SharePoint. 

If you have added the doman names above as an exception or whitelisted them in your firewall and you are still unable to use OnePlaceMail, please contact us at This email address is being protected from spambots. You need JavaScript enabled to view it.

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