There are only two companies in the world that provide comprehensive email deliverability services that include a certified ‘good senders’ list that is used by the inbox providers, ISPs, and spam filters to determine whether to deliver your email to the inbox or the spam folder*, and we’re one of those two (the other one is Validity, which used to be called Return Path). Get to the Inbox by SuretyMail is the original email deliverability service; in fact our founder was the one who originally coined the term ‘deliverability’! We’ve been helping our customers get to the inbox since 2003, and we can help you too! Learn how it works here.

*Checking our Good Senders List™ is set by default in SpamAssassin, one of the most widely deployed spam filters in the world.

Overview of How We Compare

Features THEM

Gets you to the inbox at all inbox providers and ISPs

Friendly to small businesses, entrepreneurs, and solopreneurs

Assistance with email authentication (SPF, DKIM, DMARC and rDNS)

Monitoring and analysis of feedback loops

Hands-on, personal deliverability assistance at no extra charge, no matter how large or small your business is

Sending practices review and optimization

All-inclusive month-to-month pricing

Money-Back Guarantee

Annual Contract Required

Instant Help Available

More Details About How We Compare


It can be a little overwhelming and confusing trying to figure out which email reputation certification service you should use, even though there are only two of us out there. In some ways the services are similar; in fact ISIPP SuretyMail’s founder and CEO was an original founder of Habeas, whose technology was acquired by Return Path (which has since been acquired by Validity).

However there are some important differences. For example, we don’t require you to go through an audit, to sign a multi-paged contract, or to make a time commitment – something that the other services do (we also offer a money-back guarantee, something that the other services don’t do).

We’re also a lot less expensive.

The reason that we can charge so much less for a comparable (we would say superior!) service is that we only do one thing, and we do it very well. We help you get your email delivered to the inbox. For example, we don’t offer delivery monitoring. There is a world of difference between getting your email delivered, and monitoring to see if it made it into the inbox. Anybody can set up a few free email accounts and check to see if your email campaign was delivered to those accounts. In fact, many senders do it for themselves.

Other differences between the services include:

  • Our reasonable monthly fee is based on your business model, not volume, and it’s all-inclusive, and all-you-can-eat. This means that whether you are a giant email service provider, or a mom and pop newsletter, we are affordable, and that rate will stay the same no matter how many times you ask us for assistance. And you won’t be penalized as your email volume grows along with your business.
  • ISIPP SuretyMail is a privately held organization, meaning that our SuretyMail program has no venture funding or other outside monetary interests driving it. This means that the administration of the SuretyMail program is completely free of outside financial influences. This is important for you because it means that ISPs and spam filters know that each sender certified through us is there entirely on their own merit, and so they trust us, and they trust our senders. As a result, by their own account, our email senders enjoy some of the highest deliverability rates in the industry.
  • Because of our unique reporting system we can provide these high deliverability rates without requiring that you use a confirmed (double) opt-in system in order to participate in our email reputation service. What matters is how clean and spam-free your system is, not how many hoops you’ll jump through. This means that solid, legitimate legacy lists can still qualify for SuretyMail certification, even if they were not built using double-opt in.
  • And because we take our role to facilitate the delivery of wanted email seriously, and because of our affordable pricing, we are the only email deliverability and reputation service which openly welcomes and works with newsletters, smaller publishing houses, individual publishers and mailing lists.
  • We are flexible while never compromising our standards, and are willing to work with both senders and receivers with special requests. When one of the largest email senders in the United States needed a version of a certification list which served up domains, complete with sub-domains, rather than IP addresses, we had one up and running for them within a week. The same for when a major inbox provider asked us for a reputation list specifically for non-profit organizations.
  • There is no time commitment, and we offer a money-back guarantee! SuretyMail participation is month-to-month, and the cost is so reasonable that it costs less to give it a try for a month than it costs to even just apply elsewhere.
  • It takes less than five minutes to fill out our online application, and another ten minutes to provide us with the follow up information. In the vast majority of cases, once you are approved you will be added to the Good Senders List within 30 minutes, often with nothing more to do on your end but sit back and enjoy immediately improved email deliverability.

Get started today! Apply now!

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