ms exchange dkim alignment fails

Question

Messages fail to Google with DKIM alignment failure. Dmarc report from Google: IP address: 2a01:111:f403:2418::700 Email Volume: 1 Disposition: none SPF Authentication: Pass SPF Alignment: Pass DKIM Authorization: Pass DKIM Alignment: Fail Policy: Fail   Name Server Settings: |A|@|Parked|600
seconds||| | -------- | -------- | -------- | -------- | -------- | -------- | |A|@|Parked|600 seconds||| ||NS|@|ns71.domaincontrol.com.|1 Hour|Can't delete|Can't edit| ||NS|@|ns72.domaincontrol.com.|1 Hour|Can't delete|Can't edit| ||CNAME|autodiscover|autodiscover.outlook.com.|1 Hour||| ||CNAME|email|email.secureserver.net.|1 Hour||| ||CNAME|litesrv._domainkey|litesrv._domainkey.mlsend.com.|1 Hour||| ||CNAME|lyncdiscover|webdir.online.lync.com.|1 Hour||| ||CNAME|msoid|clientconfig.microsoftonline-p.net.|1 Hour||| ||CNAME|selector1._domainkey|selector1-dfletcher-net._domainkey.netorg2885737.onmicrosoft.com.|1 Hour||| ||CNAME|selector2._domainkey|selector2-dfletcher-net._domainkey.netorg2885737.onmicrosoft.com.|1 Hour|||

CNAMEsipsipdir.online.lync.com.1 Hour CNAMEwwwdfletcher.net.1 Hour CNAME_domainconnect_domainconnect.gd.domaincontrol.com.1 Hour SOA@Primary nameserver: ns71.domaincontrol.com.1 Hour @dfletcher-net.mail.protection.outlook.com. (Priority: 0)1 Hour TXT@MS=ms333969241 Hour TXT@v=spf1 include:secureserver.net -all1 Hour TXT_dmarcv=DMARC1; p=none; rua=mailto:@dmarcinput.com,mailto:@dfletcher.net; ruf=mailto:@dmarcinput.com; fo=11 Hour SRV_sip._tls.@100 1 443 sipdir.online.lync.com.1 Hour SRV_sipfederationtls._tcp.@100 1 5061 sipfed.online.lync.com.1 Hour  

Answer 1

Hi @Duncan "Duff" Fletcher,

DKIM alignment checks the From Address in the header.

If it fails it may indicate the domain in the From header does not match the domain in the DKIM signature.

Please have a check if this is the cause of your issue.

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