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If you’re looking for the default Microsoft 365 DNS records, we’ve listed them below. For more information on DNS records, you can visit our Understanding DNS support article.
Record TypeHost NameTXT ValueTTL
TXT@MS=msXXXXXXXX3600
TXT@v=spf1 include:spf.protection.outlook.com -all3600
Record TypeHost NamePoints toTTLPriority
MX@domain-tld.mail.protection.outlook.com36000
Record TypeHost NamePoints toTTL
CNAMEautodiscoverautodiscover.outlook.com3600
CNAMEsipsipdir.online.lync.com3600
CNAMElyncdiscoverwebdir.online.lync.com3600
CNAMEmsoidclientconfig.microsoftonline-p.net3600
CNAMEenterpriseregistrationenterpriseregistration.windows.net3600
CNAMEenterpriseenrollmententerpriseenrollment.manage.microsoft.com3600
Record TypeHost NameTargetTLLPriorityServiceProtocolPortWeight
SRV@sipdir.online.lync.com3600100_sip_tls4431
SRV@sipfed.online.lync.com3600100_sipfederationtls_tcp50611