Allowlisting - Quick Reference - IPs, Headers & URLs

Please ensure you have read "Allowlisting - Introduction" before proceeding. This is so you understand which allowlisting approach is best suited for your email environment.

When applying allowlists to your email servers and/or email filtering solutions, please refer to the quick reference information below.

Be careful not to over-allowlist and only configure what's necessary to allow CanIPhish emails through.

Mail Server IPv4 Addresses:

3.106.21.22
13.237.47.221

Sending Domains:

Note: If you've white-labeled CanIPhish, replace learn.caniphish.com with the learner portion of your white-labeled domain (e.g. learn.phish.mybusiness.com)

alerting-services.com
authwebmail.com
cloud-notification-services.com
securesupportcloud.com
office-365-notifications.com
webnotifications.net
paypaypal.net
cmail31.com
authenticationsecure.com
verificationweb.net
onlineverify.net
portal-login.net
email-forwarder.net
learn.caniphish.com

Phishing Website Domains:

*.authwebmail.com
*.cmail31.com
*.securesupportcloud.com
*.webnotifications.net
*.alerting-services.com

Mail Header:

X-CanIPhish: <INSERT-TENANT-ID>

Note: The Tenant ID can be obtained from your User Profile page. e.g. "X-CanIPhish: add48xx..."

Should you have any difficulties with allowlisting, please don't hesitate to contact us.