These IP addresses can change very infrequently therefore if your IT team do whitelist them they may want to follow this Imperva blog
All access is via http/https (http is only required so we can correctly redirect browsers to use https) and these are on the standard ports 80 & 443.
Source IP address for the Schoolcomms email
- IP = 22.214.171.124
- Sending Domain = email.schoolcomms.com