(note that this might ONLY work for exchange/or require additional setup on the server to support this)
_autodiscover._tcp for the zone0 0 443 [serverDomainNameNoBrackets] - entry"v=spf1 ip4:[validIPNoBrackets] ip4:[optionalAdditionalIPNoBrackets] a:[optionalValidDomain-eg-google.com] ~all"this document last modified: January 30 2020 18:16