We need to have enough A/B testings to get good results. My recommended cold email A/B testing framework is sending 5000 emails a day with 5-10 different segments at 500 emails/segment.

35 domains with 3 mailboxes each = 105 mailboxes.

With 50 emails a day per mailbox, including 15 warmups and 35 Outreach

This will give us 60%+ open rates and 5%+ reply rates.

The number of emails a month calculation based on 105 mailboxes

100×50 = 5000 emails a day,

20 days a month = 100k emails with 30k warmups and 70k emails to prospects.

1 email per prospect a month = 70k prospects

2 emails per prospect a month = 35k prospects

3 emails per prospect a month = 23k prospects

4 emails per prospect a month = 17k prospects