The BoltMail app including our API, web hooks, recurring imports and database imports use the following IP addresses, if you are making use of these features you may wish to lock down access to only allow our IPs:
103.6.28.66
103.6.28.68
103.6.28.71
If you don't know how to restrict access to resources by IP address then please ask assistance from your web developer or web hosting provider.
