Authentication analyzer
Review SPF, DKIM, and DMARC before outreach scales.
Check the authentication records a sending domain needs before you increase cold email volume. Keep the setup simple, readable, and ready for Folderly monitoring.
DNS preflight
Three records, one clear checklist.
Use this page to prepare the authentication work, then verify the live records in Folderly before sending at scale.
3
core records
1
sending domain
0
DNS changes made
Check a sending domain
Start with the domain used in the From address, not a tracking subdomain or landing page URL.
Before sending volume
Confirm authentication with the email platform that sends for the domain, then monitor inbox placement after the records are live.
What this review covers
Enter a sending domain to get a clean SPF, DKIM, and DMARC checklist for your email setup. The page does not make DNS changes.
Folderly workflow
Authentication is the first deliverability layer.
Good records do not guarantee inbox placement, but broken records make outreach harder to trust. Pair the DNS setup with content checks, warm sending behavior, and ongoing inbox monitoring.
Does this change DNS records?
No. It is a planning check for SPF, DKIM, and DMARC work. Make DNS changes in your domain host or email platform, then verify with Folderly.
Why do SPF, DKIM, and DMARC matter?
They help mailbox providers confirm that the sender is allowed to send for the domain and that the message was not spoofed.
What should I do after this check?
Confirm the live records with your DNS host, then use Folderly to monitor placement, authentication, and reputation over time.