Stop blasting generic emails. To keep your domain safe, limit your volume to...

https://post-wiki.win/index.php/Should_You_Outsource_Outreach_or_Keep_It_In-House%3F_A_Veteran%E2%80%99s_Guide_to_Scaling_Sustainable_Link_Building

Stop blasting generic emails. To keep your domain safe, limit your volume to 50–75 emails per day. Quality is everything; relevance ensures your pitches actually hit real inboxes. Protect your sender reputation before you send one more outreach message