Production-Grade Outbound Email
B2B outbound for companies in high-trust, high-scrutiny industries—where sender credibility and domain reputation materially affect outcomes. This foundation keeps your outreach stable, credible, and repeatable as volume, expectations, and ambition grow.
Trusted by hyperscalers and soon-to-be hyperscalers backed by:
How We Work
Senders offers three services that can stand alone or stack together. The difference between them is where ownership lives and how deeply we’re involved in your day-to-day sending.
Managed Email Infrastructure
The foundation beneath outbound.
We own and operate the sending layer—domains, subdomains, IPs, authentication, warming, monitoring, and system health—so your email stays stable, reputable, and scalable over time.
This service runs in the background. Your team (or ours, through Outbound Operations) chooses the tools, copy, audiences, and workflows. We make sure what’s underneath can hold up as volume and scrutiny increase.
Outbound Operations
Full-service execution on a production-grade foundation.
We run outbound end-to-end—targeting, campaign construction, copy, testing, iteration, and scale—on top of Managed Email Infrastructure.
This is where campaign management, audience building, and operational lead generation live. Execution moves quickly, but always within a system designed to remain stable. Everything we build is transparent, portable, and yours to take in-house when you’re ready.
Deliverability Consulting
Our expertise, isolated and available directly.
Underlying everything we do is deep, hands-on deliverability expertise. Deliverability Consulting is where we offer that expertise on its own—without taking custody of your infrastructure or running your campaigns.
This is a scoped, advisory engagement for teams that want to retain ownership of their domains, IPs, and execution, but need experienced judgment to diagnose issues, stabilize sending, or navigate transitions. It can stand alone or serve as a bridge into our other services.
Our Experience
We work with companies from a wide variety of industries, predominantly in the B2B sphere, but we don't play favorites.
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.
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
"We wanted an efficient, scalable way to reach more people who could benefit from our platform. Email outbound...'' Read full case study
SuccessionHR
Peter Demangos
Senders Case Studies
Case Study Highlights
[SUSO Digital
- Industry - Marketing & SEO
- Project length - 2 years
- Key result - Market growth, funnel saturation](/content/case-study/case-study-suso-digital/index.html)
[Growrk
- Industry - Information Technology & Services
- Project length - Ongoing
- Key result - New market penetration](/content/case-study/case-study-growrk/index.html)
[Pangea.io
- Industry - Fintech
- Project length - Ongoing
- Key result - Safely scaled email outbound, moved off of Google, improved processes](/content/case-study/case-study-pangea/index.html)
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.
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.
Who is Senders ICP?
We work with small to medium-sized B2B companies across various industries (many of our clients are SaaS), mainly in the US, Canada, and the EU.
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.
Which platform do you use to send out the emails?
We manage the infrastructure without owning the sending platform. Instead, we connect with platforms like SendGrid.
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?
Among other things, 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).