We have mx and txt. Many hosting companies and email providers mark emails sent from.xyz domains as potential spam, which can lead to decreased deliverability and a lower chance of reaching. We are running a custom domain ending in.xyz through exchange, and are being told that a lot of our externally sent mail is going to people's junk/spam.
Grifols Biomat USA Bryan, TX Discover Plasma
Getting a lot of spam & phishing emails all from the tld (top level domain) of.xyz and none of it is being blocked by the bt spam filters.