Stop burning domains with mass blasts. Keep volume at 50-75 emails daily to...

https://fast-wiki.win/index.php/What_is_Inbox_Placement_Rate_and_Why_Does_95%25_Matter%3F

Stop burning domains with mass blasts. Keep volume at 50-75 emails daily to protect your sender reputation. A polite follow-up on Day 4 is the sweet spot for higher response rates without annoying editors