What is the risk of misclassified auto-replies?

Misclassified auto-replies create significant list quality risks:

The problem:

Auto-reply mistakenly classified as bounce. Valid address incorrectly suppressed. Engaged subscriber lost from list. Difficult to detect and reverse.

How it happens:

Unusual auto-reply format. Foreign language auto-response. Auto-reply containing error-like text. Overly aggressive classification rules.

Impact:

Lost subscribers: Valid addresses removed. Revenue impact: Engaged customers unreachable. Trust damage: Subscribers confused by missing emails. List erosion: Gradual loss of good addresses.

Prevention:

Conservative auto-reply detection. Human review of edge cases. Monitoring for unusual suppression patterns. Feedback mechanisms for subscribers.

One misclassified vacation reply can permanently lose a customer. Err toward keeping addresses when uncertain.