Can somebody help please, I want to start my cold email campaing and I'm wondering for 50 email account how many domains I should buy( I know I can make unlimited subdomains from a domain but one guy that I saw on YT said he buy 15-17 domains for 50 emails accounts)

Been running AD's with my client and managed to get him 6 new potential jobs so far! People have booked in already. Automated workflow responses to new leads is great for nurturing the leads when they come in. Next step A.I Chatbot! Little win today didn't expect to see a quick result's as the jobs are high priced :) CONTRACTOR WORK