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

https://www.4shared.com/office/bou7HrQTjq/pdf-59450-1527.html

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