Security is the main worry when hosting email servers, not just of the email service, but also in preventing attacks via email. Antivirus integration is available with Postal. May be it is a good idea to chain multiple antivirus solutions. Instead of just expecting that Google or Microsoft would prevent malicious email, Postal may enable better control and transparency.
No, this isn't a worry. Where are you sourcing this? "not just the email service, but also preventing attacks via email".. is saying the same thing, in a rather GPT style.
Hey, disagree with me, if you will. Please don't say what I am saying is GPT style. Very insulting.