Get delivered
Avoid spam filters and arrive in the inbox every time.
Your emails won’t get read if they’re not in the inbox
Are you sure your emails are reaching the inbox? Get your email scanned by every major spam filter before you send.
Know before you send
You've perfected your email design with our previews, and you're tracking the response with our email analytics. However, neither will be much good if your message is filtered as spam.
Litmus passes your email through all major spam filters. Not only do we show you your spam score, we also try to explain why you got that score. This advice helps you adapt your email's content to make sure it gets delivered.
All major spam filters
Litmus provides an incredibly wide range of spam filters for you to test with. We cover all major spam filters at ISPs and webmail providers, as well as corporate filters.
Server-side filters
- Barracuda
- MessageLabs
- Postini
- SpamAssassin
Sender verification
- DKIM
- DomainKeys
- Sender ID
- SPF
ISP filters
- Fastmail
- Gmail
- GMX
- Hushmail
- Lycos
- Mail.com
- Mobile Me
- Yahoo! Mail
Or continue to our email analytics,
page tests and email previews
“Litmus have created an amazing product. It should be part of every marketer’s toolkit.”
—Dave Greiner, Campaign Monitor
“Litmus is untouchable. I've never used anything that comes close.”
—Scott Schwartz
Works with any email provider
Litmus is the perfect complement to your email marketing program. As an independent company, our tools are compatible with any email provider, so there's no need to switch.
Over 30 million previews
In the past five years we've generated more than 30 million email previews for customers around the world.
Trusted by
...along with 30,000 other email marketers, designers and agencies worldwide.
Litmus is hiring! We're looking for a Rails Developer, .NET QA Engineer & Account Manager to join our growing team. See all open positions →