The following are the IP addresses of Synatic which are based on the region.
You can copy the IP address according to your region and whitelist it to establish a public connection to Synatic.
US:
23.21.172.5
54.85.118.216
queue.relay.us.synatic.com/
Ports: 5672 | 5671 for TLS
relay.us.synatic.com
Port: 443
EU:
34.253.128.48
52.49.230.151
queue.relay.eu.synatic.com/
Ports: 5672 | 5671 for TLS
relay.synatic.com
Port: 443
CA:
3.97.137.146
35.182.2.72
queue.relay.ca.synatic.com/
Ports: 5672 | 5671 for TLS
relay.ca.synatic.com
Port: 443