I am using snov and mailtrack for sending emails. I have connected one primary domain and multiple secondary domain for single google workspace user. I have following questions/doubts regarding email campaigns:
1) For email campaign do you use single MX server with multiple domains or separate MX server for each domain?
2) I am tracking email health using mail-tester and few other tools but I have observed that the results are not accurate and they change every 24-48hr. So can I trust these platforms? Any suggestions?