Hello guys, I want to run my first campaign and I want to know: How many google inboxes per domain are considered safe ?

Mail-tester Mailtester Emailguard Mailreach Also, if you have 100 inboxes and 50 domains. How do you guys test them?

A lot of people try to think their way to the answer when a campaign is not working - Is it the copy? - Is it the leads? - Is it the offer? - Is it deliverability? - Is it the CTA? The truth is, most of the time, you do not actually know yet Cold email gives you answers through testing, not overthinking I have seen campaigns that looked great on paper do nothing And I have seen simple angles I almost would not have bet on start generating opportunities That is why I think one of the most important skills in cold email is being willing to test aggressively Different lead segments - Different angles - Different offers - Different CTAs - Different email lengths Different levels of personalization You can sit there analyzing forever, and you still might be wrong The market tells you what works Not your assumptions So, if something is not landing, I would not get too emotionally attached to one explanation I would test harder, faster, and with more volume until something sticks Then, once it sticks, scale the hell out of it That has honestly been one of the biggest lessons for me Cold email is less about guessing right from the start and more about taking enough action to find the thing that works