By IP Ranges of Email Servers
50.31.156.96/27 (50.31.156.96 - 127)
104.245.209.192/26 (104.245.209.192 - 255)
50.31.205.204/30 (50.31.205.204 - 207)
By Email Header
Your Jericho Security technical contact will have a unique email header key and value for you.
By Domains
This is more difficult as Jericho Security offers many sender domains and often adds more.
Where to whitelist:
Email Provider (e.g. Microsoft or Google), for both Spam and Phishing
Email Security Toolings (ProofPoint, Mimecast, Abnormal, Microsoft Defender, etc)
(Rarely Needed) Web Firewall
What to whitelist:
Ensure Email Delivery
To avoid Inspection of Links in Emails (e.g. avoid URL Rewrite)
To Avoid Scanning Attachments in Emails