365 Dns records set well to work with “365 office” is not an easy task to have it more clear, is the steps I’ve done:

  • we need to modify several parameters in dns records assuming that our domain is (“dominio.com”):
  • 1. Add validation records (the register office service 365)

tye:  txt value: “MS=ms93xxxxxx”  where the value ms93xxxxxx microsoft gives us when we sign up for the service

type: txt value: “v=verifydomain MS=ms93xxxxxx

we also do validation using MX records, these records will be meaningless once the service set.

type: MX (99)value:”ms93xxxxxx.msv1.invalid

  • 2. Add MX records:
type: MX (10)value:”dominio-com.mail.eo.outlook.com”  ( attention to the first part corresponds to the domain)
  • 3. Add registers spf:
tipo: txt  value: “v=spf1 include:outlook.com ~all“.
tipo: txtvalue: “v=spf1 include:spf.microsoftonline.com ~all“.
  • 4 Add the register at the dns of “autodiscover” for the outlook and mobile devices are configured automatically:
type: cname value: autodiscover points to:  autodiscover.outlook.com
In this way the requests are redirected to: autodiscover.dominio.com hacia autodiscover.outlook.com
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