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Allinilla's avatar
Allinilla
Copper Contributor
May 28, 2021
Solved

emails are getting Held because the DMARC Result Fails

One of our colleagues OOF message, does not arrive at recipient - the recipients IT department writes the following:   "The email was released but Permitting/Whitelisting the sender mailto:mwn@oper...
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  • CoasterKaty's avatar
    CoasterKaty
    May 28, 2021

    Allinilla So this sounds like DMARC/SPF/DKIM might not be set up properly.

     

    operate.dk has a DMARC policy of quarantine (see _dmarc.operate.dk TXT record)

    SPF record is "v=spf1 include:spf.mailjet.com include:spf.protection.outlook.com include:cmail1.com include:spf.emailsignatures365.com -all"

     

    DMARC requires SPF and DKIM to be valid so I can only assume that DKIM is not set up correctly as I see no reason why that SPF record would cause Out of Office replies from 365 to fail.

     

    You will need whoever looks after the admin side of operate.dk 365 tenancy to configure DKIM as per How to use DKIM for email in your custom domain - Office 365 | Microsoft Docs

CoasterKaty's avatar
CoasterKaty
MVP
May 28, 2021

Allinilla So this sounds like DMARC/SPF/DKIM might not be set up properly.

 

operate.dk has a DMARC policy of quarantine (see _dmarc.operate.dk TXT record)

SPF record is "v=spf1 include:spf.mailjet.com include:spf.protection.outlook.com include:cmail1.com include:spf.emailsignatures365.com -all"

 

DMARC requires SPF and DKIM to be valid so I can only assume that DKIM is not set up correctly as I see no reason why that SPF record would cause Out of Office replies from 365 to fail.

 

You will need whoever looks after the admin side of operate.dk 365 tenancy to configure DKIM as per How to use DKIM for email in your custom domain - Office 365 | Microsoft Docs

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