@hittitezombie @Edent Yes, totally agree, it ain't easy. Setting up and maintaining SPF, DMARK, DKIM etc.isn't for everyone for sure. But the major problem these days are the black/whitelisting of email servers done by the major players like Microsoft and Google. They essentially control the email space now. I don't know how many times I've gone through their whitelisting process just because I have a small email server. It is ridiculous, email has essentially become a monopoly now.