BuzzStream Servers route traffic for email through 5 specific IP addresses. If you're looking to set permissions for BuzzStream through your firewall or network, you'll need to make sure the following IP addresses have permissions for two-way traffic.
- 23.23.157.152
- 23.23.157.244
- 54.243.53.148
- 23.23.159.203
- 54.225.68.137