Pushy Trial / Pushy Pro require the following outgoing hostname & port combinations to be whitelisted in your network firewall for devices to receive notifications from Pushy:
*.pushy.me:443 *.pushy.io:443
Note: Please notice the * character which indicates a wildcard subdomain whitelist, and the two separate domains pushy.me and pushy.io.
If your organization has strict firewall requirements, we can provide a static IP address for $50/m. Please contact us for more info.
In case your app is already configured to connect through a static IP address, please note that both TCP ports 443 and 8883 need to be whitelisted for outgoing traffic for the assigned static IP address.
Finally, you may also consider Pushy Enterprise, a dedicated deployment of Pushy which runs on a static IP, and includes other benefits such as 24/7 support & an uptime SLA guarantee.