Why It Matters for Sender Reputation
A permanent email delivery failure caused by an invalid, non-existent, or blocked recipient address. Understanding this concept is essential for maintaining good email deliverability and protecting your domain's sender reputation.
How It Works
Deliverability factors determine whether your email reaches the inbox or gets filtered to spam. Monitoring and optimizing these factors is key to maintaining a strong sender reputation.
Practical Example
When configuring your email sending infrastructure, paying attention to bounce (hard) 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.