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Cold email outbound plans that support your growth and protect your domain reputation.

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Partners

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Stable and Scalable Cold Email Infrastructure

For years we’ve run a cold email outbound agency known for exceptional cold email sendability and deliverability.

If you need to send cold email with stability and scalability while avoiding domain damage, spam filtering, and sending limitations – we figured out how.

What Is Senders Protocol?

Senders Protocol is a proprietary mix of in-house and off-the-shelf tools, IP addresses, subdomain and DNS Configurations, testing patterns, and intervention procedures. It is called a “protocol” because it isn’t a ‘single turnkey thing’ but rather a set of things that make it work – it is a service that we do for you.

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What Is Senders Protocol Used For?

Senders Protocol is for sales and partnership teams who are cold emailing their prospects and feel limited in sending volume, worried they are getting spam flagged, or need to safely scale up cold email while avoiding domain or reputational damage.

Clients

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Our services

Senders Protocol

Making sure your cold emails can be sent – and delivered – at the volume you need to exceed your goals

Senders Strategy

Copywriting, strategy, and guidance from a team of cold email experts with millions of sends – and millions of dollars of net new pipeline – under our belts.

Contact Sales

Request information on qualifications, pricing, and service details. Be sure to let us know which VC firm, accelerator, or Seed investor sent you, if any. 

How Do I Get Started
With Senders Protocol?

After an initial setup procedure (a single zoom call), and a short testing/warm-up period, you’ll be ready to begin sending at a higher volume with better deliverability.

Do I Need To Replace My Sales
Tools To Use Senders Protocol?

No. Senders Protocol can work with almost any tools you are already using - Apollo.io, Outreach.io, Salesloft, Hubspot, etc. and your sales folks will not need to check a separate inbox to retrieve their email replies.

ARE YOU READY TO BE ABLE TO SEND THOUSANDS MORE EMAILS PER WEEK?
 

How Do You Know It Works?

Senders Protocol is battle-tested – 10s of millions of emails sent across thousands of target markets for hundreds of B2B clients including those funded by top-tier VCs like Greylock, YCombinator, Foundation Capital, Salesforce Ventures, Union Square Ventures, and dozens more.

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