Test SPF, DKIM, DMARC & spam score
Do your emails land in the spam folder? The Mail Tester analyzes a real test email from your server: SPF, DKIM and DMARC, SpamAssassin score, headers and mail server configuration – with concrete improvement suggestions.
Guest mode: limited usage. Register for free for unlimited usage, history & statistics.
Register freeTest Your Email
Generate a unique test email address, send an email to it, and get a detailed score with SPF, DKIM, and DMARC analysis.
2 tests per day as guest - register for free to get 10!
How it works
1. Create test address
One click creates a unique test email address.
2. Send an email
Send an email from your mail server to this address.
3. Read the result
Seconds later you see the score, spam triggers and improvement suggestions.
Features in detail
SPF / DKIM / DMARC
All three authentication standards including alignment checks.
Spam score
SpamAssassin-compatible score – see what spam filters dislike about your email.
Header analysis
Complete evaluation of the email headers including the received chain.
Server configuration
MX, PTR, HELO/EHLO, TLS and more – the complete server check.
Score /10
Clear overall rating following the well-known mail tester principle.
No account needed
Test for free – without registration.
Frequently asked questions
Why does my email land in spam?
The most common reasons: missing SPF/DKIM/DMARC records, no PTR record, a listed IP or suspicious content. The Mail Tester shows all points in one overview.
What is a good spam score?
Below 2 points is ideal, below 5 usually fine. From 5 points your email is often filtered out.
Can I use the tester for multiple domains?
Yes – simply send test emails from each of your servers. With an account you also see your history.
How does this differ from content spam checks?
The Mail Tester combines both: server/DNS configuration AND content-based spam triggers – so you see the complete picture.