Apollo's premier partner for Email Deliverability

Senders is the partner for teams serious about deliverability. We specialize in deliverability, scalability, and precision of cold email, helping you reach more inboxes without risking your reputation. Apollo's premier partner for Email Deliverability.

Schedule a meeting

Having trouble seeing the booking calendar? Click here for a direct link.

Why Senders Protocol?

If avoiding domain damage, spam filtering, and sending limitations for cold email, marketing/newsletter email, corporate email, or transactional email is what you’re after, Protocol is the way to go.

  1. Uncompromising Stability
  2. Leading technology
  3. Ongoing email delivery testing and monitoring
  4. Time back to your team

With ongoing deliverability monitoring, regular audits, and an entire ecosystem of preventative measures, your brand and domain are in safe hands.

Protocol Explained

Senders Protocol is a proprietary email deliverability solution that combines in-house and off-the-shelf tech tools, IP addresses, subdomain and DNS Configurations, testing patterns, and intervention procedures.

Protocol Stats and Results

We’ve created Senders Protocol to help businesses improve their email sendability and email deliverability in one fell swoop while protecting their hard-earned email reputation. Here’s a glimpse into the features Protocol brings to the table:

  • Over 20 million emails sent and delivered in the last 12 months
  • 100s of active senders across industries
  • Over a $100 million in sales generated from emails we facilitated

Our Experience

We work with companies from a wide variety of industries, predominantly in the B2B sphere.

SMB SaaS

You want to move upmarket, but enterprise inboxes don’t trust new senders. We help you build the reputation that opens doors beyond SMB.

Health and Medical

Heightened security around patient data means aggressive filtering—even for legitimate outreach. We help you land in inboxes that are designed to keep strangers out.

HR (Human Resources)

HR buyers sit inside large organizations with enterprise-grade filtering. Reaching them requires infrastructure that can survive that level of scrutiny.

Agencies

Your best prospects have the tightest defenses. Without production-grade infrastructure, you end up fishing where the filters are weakest—not where the clients are best.

Cyber Security

You’re selling protection, but your emails look like the threat. We build infrastructure that signals credibility to the systems you’re trying to get past.

FinTech

Trust is the product. Disposable domains and inbox sprawl undermine that from the first touch. We help you show up like the serious partner you are.

Pricing

Built for every budget and outreach goal, we have three main tiers of our email deliverability services:

Lite Plan

$1200 /mo

  • Sends: 600 /day; 12,000 /monthly max after ramp-up
  • Senders: 1
  • Concierge onboarding
  • Ongoing human support

Solid Plan

$1800 /mo

  • Sends: 800 /day; 16,000 /monthly max after ramp-up
  • Senders: 1
  • Concierge onboarding
  • Ongoing human support

Serious Plan

$2500 /mo

  • Sends: 1600 /day; 32,000 /monthly max after ramp-up
  • Senders: 2
  • Concierge onboarding
  • Ongoing human support

Testimonials

"Beyond deliverability expertise, we wanted an outreach partner with a strong understanding of the VC/startup...’’ Read full case study

Arc

Austin Beveridge

"There are so many moving parts of our business – why should we deal with as many moving parts needed for email...’’ Read full case study

Stephanie Corder

Stitchroom

"Getting things done more efficiently is a big part of what 8base is about. We understand the importance of fostering...'' Read full case study

8base

Karel Montes

"Our experience with Senders has been great over the years. Lead Strategist (Velimir) and the team are able to adapt...'' Read full case study

Growrk

Carlos Escutia

This space intentionally left blank for future content.

FAQ

Deliverability and Strategy

How is Senders different from other similar companies?

Unlike most other companies, we don’t use Google or Microsoft to send, which reduces the risk of reputation damage or your emails landing in spam.

What is your pricing structure?

Our pricing varies depending on each client’s needs, but our deliverability service starts at $1200. You can learn more about our pricing here.

Why should I use Apollo?

Apollo enables us to use Sendgrid and other proprietary tech tools for safe sending, without having to rely on Google’s infrastructure.

How long does it take to reach the full volume of sending?

With our warming protocols to protect deliverability, it takes 7 weeks or more depending on the time of year – holidays may extend the process.

What does warm-up mean?

Warming entails gradually increasing the volume of emails sent from a new email domain/subdomain to build a positive sending reputation with Internet Service Providers (ISPs).

Copywriting

What will you base your email copy on for my campaigns?

We combine specific information from your discovery form with our internal best practices based on the thousands of emails we’ve written and sent over the years.

Do you use AI for copywriting?

No, we don’t use AI for writing our emails. We have a team of strategists and writers that work together with you to create the kind of copy you will be happy with, aligned with our best practices and years of experience.