EU and DE app data location IP addresses to allow
We recently launched https://thepluginpeople.atlassian.net/wiki/spaces/JEMHC/pages/4102750249 support for EU and DE (Germany) Atlassian product regions.
If your JEMHC installation is in the EU and DE app data location, you may need to adjust any IP-based security rules that your email/communication services have to allow JEMHC to connect.
Here is the latest full list of IP addresses used by the app: