01 Definition

Sender Reputation meaning: Mailbox providers' assessment of a sender's trustworthiness.

Sender reputation is a collection of signals associated with sending domains IP addresses and behavior including authentication complaints bounces volume patterns and engagement.

Also called

sending reputation

Why it matters

How Sender Reputation fits the work

It strongly influences whether campaigns are accepted blocked or placed in spam.

In context

Complaint spikes weakened the brand's sender reputation.

!

Practical note

Build reputation through permission consistent operations authentication and useful email rather than short-term tricks.