Can't Receive Email from Trusted Sender - 5.7.1 Bounce - Microsoft Community

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we've upgraded office 365. can't receive messages company regularly business though i've added them our trusted sender's list. getting 5.7.1 bounce message. says "rejected organization policy" it's not our policy , have no idea how fix it.

{"notificationtype":"bounce","bounce":{"bouncetype":"transient","bouncesubtype":"contentrejected","bouncedrecipients":[{"emailaddress":"xxxx@coxcontractors.com","action":"failed","status":"5.7.1","diagnosticcode":"smtp;550 5.7.1 transport.rules.rejectmessage; message rejected organization policy"}],"timestamp":"2017-07-07t04:19:16.000z","feedbackid":"0100015d1b460373-72529f84-62cb-11e7-bc44-093af726139c-000000","reportingmta":"dns;dm3pr1101mb1104.namprd11.prod.outlook.com"},"

***post moved moderator appropriate forum category.***

hi shelby,

the dsn error code 5.7.1 received indicates organization has security setting emails preventing messages reaching recipient. might 1 of following problems:

  • don’t have permission send recipient.

  • don’t have permission send distribution group or 1 of subgroups.

  • don’t have permission send email through email server that’s between , recipient.

  • your message routed wrong email server.

refer article resolve email delivery issues error code 5.7.1 in office 365.

let know if have other concerns.



Office / Outlook / Other/unknown / Office 2016



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