SendTester

Check Your Email Spam Score

Send a test email and get an instant deliverability report — SPF, DKIM, DMARC, blacklists, and spam score analysis.

What We Check

SPF
Sender Policy Framework validation
DKIM
DomainKeys signature verification
DMARC
Domain-based Message Authentication
Spam Score
rspamd analysis with detailed symbol breakdown
Blacklists
IP/domain checked against Spamhaus, Barracuda, SORBS
Email Headers
Message-ID, Date, List-Unsubscribe compliance
HTML Quality (beta)
HTML/CSS compatibility check across email clients

See a Sample Report

85%
Your email looks great!
Minor improvements suggested
AuthenticationPass
ReputationPass
ContentPass
Email HeadersWarning

How It Works

Copy Address
Copy the generated email address
Send Email
Send any email to that address
Get Report
View your detailed deliverability report

FAQ