Why It Matters for Sender Reputation
A protocol that preserves email authentication results across forwarding hops, allowing downstream receivers to validate the original authentication. Understanding this concept is essential for maintaining good email deliverability and protecting your domain's sender reputation.
How It Works
Email authentication protocols work together to verify sender identity and protect against spoofing. Proper implementation directly improves your Sender Reputation Score and inbox placement rates.
Practical Example
When configuring your email sending infrastructure, paying attention to arc (authenticated received chain) is critical. A misconfiguration or oversight in this area can lead to decreased deliverability, increased spam filtering, or even blacklisting.
Check your setup: Use our Sender Reputation Checker to verify your domain's configuration and get your free Sender Reputation Score.