Why do I need DNS records?
Understand SPF, DKIM, DMARC, MX, and tracking records.
DNS records prove that your domain is allowed to send mail and help receiving inboxes decide whether to trust your messages.
What this helps you do
DNS records prove that your domain is allowed to send mail and help receiving inboxes decide whether to trust your messages.
Recommended workflow in Outlio
Set MX records so the domain can receive email.
Set SPF to authorize your sending provider.
Enable DKIM so messages carry a provider signature.
Publish DMARC to tell inboxes how to evaluate failures.
Use a custom tracking domain when tracking links are enabled.
Quality checks
- Start DMARC at p=none while monitoring.
- Only keep one SPF record per domain and merge includes into it.
- Retest DNS after switching email providers.
Common mistakes to avoid
- Creating multiple SPF TXT records.
- Copying DKIM values into the wrong host/name field.
Done well, this should leave you with
A cleaner Outlio setup, fewer avoidable campaign issues, and a more reliable path from setup to replies.
Related articles
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SPF, DKIM, and DMARC for Microsoft 365
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Add Google Workspace records in Namecheap.
Namecheap DNS with Microsoft 365
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