Editing Spam complaint rate (section)

=== Introduction ===
The '''spam complaint rate''' refers to the percentage of recipients who report your email as spam compared to the total number of emails sent. This metric holds importance because a high spam complaint rate can lead to negative outcomes such as poor deliverability, reduced sender reputation, or potential blocking by internet service providers (ISPs).

A spam complaint rate above the commonly accepted threshold of '''0.1%''' indicates a significant issue. For instance, if you send out 5,000 emails and 5 are marked as spam, your spam complaint rate is 0.1%. Monitoring this metric allows you to make informed adjustments to your email strategies, ensuring higher engagement and compliance with email marketing best practices.