All tools
DNS Record Builder
Build SPF, DMARC, DKIM, MTA-STS and the standard M365/Intune record sets, then bulk-export the lot.
Why this exists
The DNS and deliverability tools tell you what's wrong; this builds the record to fix it. Hand-writing a DMARC tag string, an MTA-STS policy, or a tenant's whole M365 onboarding set is error-prone, so a form that emits the exact values plus a one-click library of standard records is faster and safer.
How to use
- Set the domain (and the onmicrosoft.com tenant name for M365 records).
- Build records on the tabs, or one-click a standard set in the Library, then Add to set.
- On Export, pick a format (Table, TSV, Cloudflare, BIND) and copy the whole set into your DNS host.
Feeds the record names (apex, _dmarc., DKIM, MDM, Teams). Auto-saved to this browser.
Used for the M365 DKIM targets and the MX <domain-key> in the Library.
0records in the set
SPF options
SPF TXT record
Name
@
Type
TXT
Value
v=spf1 include:spf.protection.outlook.com -all