Stop killing your domain reputation with generic mass-blasts. Aim for 50–75...

https://tiny-wiki.win/index.php/How_to_Build_a_High-Quality_Outreach_List_Using_Competitor_Backlinks

Stop killing your domain reputation with generic mass-blasts. Aim for 50–75 personalized emails daily to high-intent targets. It protects deliverability and builds real relationships instead of spam