How to test deliverability to Yahoo/AOL specifically?

Testing deliverability to Yahoo and AOL specifically requires targeted seed testing and monitoring. Set up test accounts at both providers since they share infrastructure and place these seeds in your regular sends. Monitor which folder messages land in and track delivery timing.

Yahoo's postmaster tools provide aggregate data about your performance, including reputation ratings and complaint rates. Register your sending domains to access this dashboard. Check it regularly for warning signs before they become blocking issues.

For more detailed analysis, use third party inbox placement tools that maintain Yahoo/AOL seed panels. These services send to their test accounts and report whether messages hit inbox, spam, or were blocked. Compare Yahoo results to other providers to identify Yahoo specific issues requiring attention.