5 min read
Namecheap DNS with Microsoft 365
Add Microsoft 365 records in Namecheap.
Overview
Use Namecheap Advanced DNS for Microsoft SPF, DKIM CNAMEs, MX, and DMARC.
Recommended workflow
1
Open Advanced DNS for the domain.
2
Add the Microsoft 365 MX record.
3
Add SPF as a TXT record at @.
4
Add both Microsoft DKIM selector CNAME records.
5
Add DMARC at _dmarc and verify in Outlio.
Tips that make this work better
Tip
Use automatic DNS setup from Microsoft only if it does not overwrite needed records.
Tip
Confirm CNAME host values are not duplicated by Namecheap.
Tip
Keep one SPF record by merging providers.
Common mistakes to avoid
- Adding selector CNAME records with the full domain repeated.
- Keeping stale Google MX records after moving to Microsoft.
Done well, this should leave you with
A cleaner Outlio setup, fewer avoidable campaign issues, and a more reliable path from setup to replies.
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