Fix guides
SPF Record Fixes
SPF is one TXT — mess it up and mail bounces or hits PermError. Pick a topic and paste the record we show.
Too Many DNS Lookups
Stay under the SPF 10-lookup limit and flatten safely.
SendGrid SPF
include:sendgrid.net and common pitfalls.
Google Workspace SPF
include:_spf.google.com for Gmail routing.
Microsoft 365 SPF
include:spf.protection.outlook.com patterns.
Multiple Providers
Merge SPF into one TXT without breaking limits.
Softfail vs Hardfail
~all vs -all and when to use each.
Cloudflare SPF
Editing TXT at Cloudflare DNS.
Namecheap SPF
Host and TXT field quirks on Namecheap.
GoDaddy SPF
SPF TXT record on GoDaddy DNS.
AWS Route 53 SPF
Route 53 TXT records and split strings.
How to use these guides
Step 1 Open the guide that matches your issue or DNS host.
Step 2 Merge or edit your SPF TXT at the DNS host as shown — keep a single v=spf1 record.
Step 3 Run DNS Preflight to confirm SPF resolves and stays under the lookup limit.