Most link building efforts fail because they prioritize volume over relevance....

https://spencersgreatjournal.wpsuo.com/lookalike-audience-expansion-for-link-building-a-guide-to-building-an-outreach-os

Most link building efforts fail because they prioritize volume over relevance. Instead of blasting random lists, cap your outreach at 50 high-quality emails per day to protect your domain health