Deliverability

NDR (Non-Delivery Report)

An automated message sent back to the sender when email delivery fails.

Why It Matters for Sender Reputation

An automated message sent back to the sender when email delivery fails. 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 ndr (non-delivery report) 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.

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