Free toolsCheck the records that decide
Check the records that decide
if your email lands.
Free checkers for the DNS records behind email delivery. Type a domain, see what's wrong in plain language and copy the fix. No signup, and nothing you check is stored.
The checkers
- MX · SPF · DKIM · DMARC · BIMI
Email domain checker
All five checks at once: MX, SPF, DKIM, DMARC and BIMI.
Open - DMARC
DMARC checker
Read a DMARC record: policy, reports and what to change next.
Open - SPF
SPF record checker
Validate SPF and count its DNS lookups against the limit of 10.
Open - DKIM
DKIM checker
Find DKIM keys by selector and check their strength.
Open - MX
MX lookup
See the mail servers and the provider behind a domain.
Open - BIMI
BIMI checker
Check if your logo can show next to your emails.
Open - SIGNATURE
Email signature generator
Build a signature that works in Gmail, Outlook and Apple Mail.
Open
Stop fixing DNS by hand.
SmartMailing gives you the records for your sending domain and checks them for you.