🚀 Join Mission Inbox – Help Businesses Get Their Emails Seen!
At Mission Inbox, we help businesses take control of their email deliverability and bypass Gmail and Outlook limits with an all-in-one platform. We’re growing fast, solving real problems for businesses, and looking for a Customer Success Manager who thrives in a startup environment.
We’re looking for a proactive, adaptable, and resourceful Customer Success Manager who knows what it takes to work in a fast-moving startup. If you enjoy solving problems, creating processes from scratch, and being the go-to person for customers and the team, this role is for you.
You'll be part customer support, part technical consultant, part growth strategist—helping customers maximize their success while driving retention and expansion.
✅ Customer Support & Success
Answer customer questions via chat, email, and calls, ensuring fast and effective resolution.
Guide customers in adopting and using our platform to maximize email deliverability.
Collaborate on customer-requested tasks and manage aspects of client email infrastructure, including:
DNS setups (SPF, DKIM, DMARC)
Domain purchasing & management
IP swapping & warm-up strategies
✅ Customer Onboarding & Retention
Own the onboarding process, ensuring customers quickly reach their "aha!" moment and reduce time to value.
Implement customer retention strategies by identifying at-risk accounts, understanding pain points, and proactively offering solutions.
Track customer health metrics and develop playbooks to reduce churn and improve engagement
Establish and optimize customer success processes to create a seamless, scalable experience.
✅ Upselling & Expansion
Identify opportunities to upsell customers on new features and solutions that improve their workflows.
Educate customers on best practices, industry trends, and strategies to optimize email deliverability.
Work closely with sales and product teams to ensure a seamless experience for customers.
🔹 Startup Mindset – You thrive in ambiguity, take initiative, and build processes from scratch.
🔹 Customer-First Mentality – You genuinely enjoy helping customers succeed.
🔹 Technical Acumen – You understand email infrastructure or can learn quickly (DNS, domains, IPs).
🔹 Retention & Growth Focused – You know how to keep customers engaged and prevent churn.
🔹 Communication Skills – You can explain technical concepts in a clear, concise way.
🔹 Ownership & Accountability – You don’t wait for instructions; you see a problem and fix it.
⭐ Experience in email deliverability, DNS setups, or domain management
⭐ Background in SaaS, B2B, or technical support
⭐ A passion for helping businesses improve their email marketing performance
💰 Performance-Based Growth – Compensation evolves based on the value you bring. Raises and career advancement are earned through impact, not tenure.
🌎 Fully Remote & High-Ownership Culture – Work from anywhere, but take full responsibility for your role and contributions.
🚀 Join a Fast-Growing Startup Solving Real Business Problems – Be part of a team that is revolutionizing email deliverability for businesses worldwide.
📚 Opportunities to Learn, Build, and Innovate – We believe expertise can be rapidly developed, and we encourage curiosity, deep learning, and proactive problem-solving.
🎯 A Culture of Excellence & Accountability – At Mission Inbox, we don’t just do tasks—we own them, build solutions, and deliver quality with the customer’s ROI in mind
At Mission Inbox, we are not just a workplace—we are a high-performance environment where excellence, innovation, and accountability drive everything we do. Here’s what we live by:
🔥 Own It – Take accountability, responsibility, and pride in your work. What you do is a reflection of who you are.
🔧 Build Solutions – We are a tech company. When solutions don’t exist, we create them. Use AI and technology to stay ahead.
🏆 Quality as a Signature – Excellence is non-negotiable. Everything we produce is a testament to our commitment to integrity and world-class execution.
📈 Customer ROI in Mind – Every action should improve customer outcomes. Think in terms of time saved, revenue gained, and better results for our users
⚡ Expert Express – Rapid learning leads to mastery. Deep dive into knowledge, adapt fast, and build expertise in record time.
These values are not just words—they are our operating system If you thrive in an environment where merit dictates success, where you are judged by the impact you create, and where challenges are opportunities to grow, you’ll fit right in.
The first 60 days are a crucial period where we assess how well you integrate with our values, adapt to the role, and contribute meaningfully. This is not just a probationary period—it’s an opportunity for you to prove your potential, showcase your ability to think, execute, and drive results, and establish yourself as an indispensable part of the team.
We want you to succeed and grow, and we’re here to support you—but we expect commitment, curiosity, and drive from day one.
If you’re excited about a fast-paced, meritocratic startup environment where ownership, innovation, and high standards are the norm, we want to hear from you. Apply now and let’s build the future of email deliverability together! 🚀

As spam filters tighten, 52% of business emails go unseen, crippling sales and collections for B2B companies. Mission Inbox solves this by giving companies full control of their email infrastructure—without needing to manage complex servers or rely on Gmail hacks.
We’ve built a real email infrastructure (like SendGrid or Mailgun), but purpose-built for sales and outbound email. Mission Inbox combines two powerful components:
MI Shield – our AI-powered pre-send spam filter that blocks bad emails before they’re sent. It protects your domain, improves inbox placement, and ensures only high-quality, personalized emails go out.
OBM Engine – a SendGrid-like API layer designed specifically for outbound sales email. It lets platforms, founders, and CRMs plug into our infrastructure and start sending with confidence—no warm-up tricks, no rented Gmail inboxes.
Everything we do is transparent. Our clients own their domains, DNS, mailboxes, and sending identity. We don’t hijack nameservers, we don’t lock people in, and we don’t hide anything.
Whether you’re a sales team, cold email platform, or founder building your own tool—Mission Inbox gives you what you’ve always wanted from email infrastructure: deliverability that scales, with control you can trust.