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Required records

Forwarding mode requires four DNS records on your domain. Inbound mail is rejected with 550 until all four verify. Replace example.com with your domain. The Dashboard’s Settings tab shows the same values pre-filled with copy buttons.
RecordTypeHostValuePriority
MXMXexample.comsmtp.jetsmtp.net10
DKIMCNAMEje1._domainkey.example.cominbound.jetsmtp.net
SPFTXTexample.comv=spf1 include:inbound-spf.jetsmtp.net -all
DMARCTXT_dmarc.example.comv=DMARC1; p=none
p=none is the minimum DMARC policy that will pass verification. Stricter policies (p=quarantine, p=reject) also pass, so pick whichever your organization is ready for.

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Verifying

1

Publish the records at your DNS provider

Add the four records exactly as shown above. Most providers strip the trailing .example.com from host names automatically. If yours requires the full FQDN, paste the host as shown.
2

Click Check DNS

On the Forwarding domain’s Settings tab, click Check DNS. We resolve all four records and update each row to Verified or Pending. Re-run as records propagate.
3

Wait for propagation if needed

DNS changes can take anywhere from a few seconds to a few hours to be visible to our resolvers. If a record is correct but still pending, give it 5–10 minutes and run the check again.

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Troubleshooting

MX is pending. Confirm there’s only one MX record on the apex of your domain. Multiple competing MX records will fail verification. Don’t point MX at mail.example.com or any other intermediate hostname; it must resolve directly to smtp.jetsmtp.net. SPF is pending. If you already have an v=spf1 record (e.g. from another sender), merge the include rather than adding a second TXT record. Only one SPF record is permitted per domain: 
v=spf1 include:_spf.othersender.com include:inbound-spf.jetsmtp.net -all
DKIM is pending. Some providers append your apex domain automatically. If you enter je1._domainkey.example.com as the host and it becomes je1._domainkey.example.com.example.com, drop the trailing .example.com from the host field. DMARC is pending. Make sure the host is _dmarc.example.com (with the underscore). If you already have a DMARC record, leave it alone. Anything p=none or stricter passes.