When using the notification capabilities in SchoolFront, the service will send emails that are from your email address. Some email systems will check if the server sending the email is "Approved" to send emails for that domain.
It is highly suggested that you have your IT department whitelist/approve our SMTP server for sending emails.
Information they will require:
hostname: sf-www3.hosting.frontedge.com
IP Address: 157.238.136.178
If your IT department has any questions or concerns please have them contact us at support@schoolfront.com.