Top & Trending
Usage Considerations
Configuring an Anti-Spoofing Policy
Example Policies
Anti-Spoofing Policy to Allow Spoofing Based on IP
Anti-Spoofing Policy to Block Unwanted Spoofed Emails
Spoofing is the forgery of email headers so messages appear to come from someone other than the actual source. This tactic is used in
When messages are sent or received between two email servers or Mail Transfer Agents (MTAs), the communication uses a series of numeric SMTP codes. These codes are always in pairs, which means both servers transmit the codes until either the conversation is successful, or fails. There are two main code types for dropped or failed SMTP
