How to fix Yahoo policy rejections?

Yahoo policy rejection remediation:

Understand the cause:

Usually complaint-driven

May be reputation-based

Vague messages intentionally

Actions:

Check Yahoo FBL for complaint data

Clean Yahoo addresses aggressively

Reduce volume to Yahoo temporarily

Focus on engaged Yahoo users only

Authentication check:

Verify SPF, DKIM, DMARC for Yahoo

Yahoo respects authentication strongly

Recovery:

Yahoo often recovers naturally after fixes

May take days to weeks

Patience after implementing changes

Yahoo responds to complaint rates. Reduce sources of complaints.