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user is receiving the NDR on mailbox enable backscatter and SPF SPF

Asked by:
Addy
Nov 24, 2016, 22:42

Description

once the domain is added to o365 DNS records has to be updated on the global DNS if not updated
    To stop NDR to mailbox user please update SPF

    to update SPF user has to enable SPF on o365

copy records provided on o365 portal and Add SPF on TXT record section under DNS as given below
v=spf1 ip4:142.25.71.253 include:spf.protection.outlook.com -all   


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