We’re thrilled to announce that Postmastery, the Amsterdam-based email delivery and deliverability specialists, have officially joined emailexpert as a Charter Enterprise Member. This milestone represents a significant strengthening of our partnership and underscores our shared commitment to advancing email excellence across the global email community.
A Partnership Built on Excellence
The relationship between Postmastery and emailexpert spans several years of successful collaboration. In 2024, emailexpert hosted the Postmastery Customer Day, bringing together industry leaders and email professionals to share insights and best practices. Postmastery also served as the headline sponsor of our recent Deliverability Summit event in Amsterdam, demonstrating their ongoing commitment to supporting the email community’s growth and education.
This long-standing partnership has been built on shared values: advancing email best practices, supporting professional development, and fostering meaningful connections within the email ecosystem.

“Joining emailexpert as a Charter Enterprise Member represents the natural evolution of our long-standing partnership. For years, we’ve collaborated on advancing email deliverability education and supporting the professional development of our industry and the community. This allows us to contribute more strategically to the initiatives that matter most to email professionals worldwide. At Postmastery, we believe that when the entire email ecosystem thrives through education and collaboration – and empower senders to achieve more” said Willem Stam, Partner at Postmastery
About Postmastery: Leaders in Email Deliverability
Postmastery is dedicated to helping senders maximise their email performance and deliverability with a range of software, tooling and consulting solutions. Founded by industry veterans with prominent involvement in the email sector, Maarten Oelering and Willem Stam have been prominent members of the email industry for decades.
The company’s comprehensive offerings include:
- Postmastery Console: A powerful email analytics platform providing 360-degree visibility into email delivery performance
- MTA Services: As global channel partners and resellers they provide licensing, implementation, and optimisation services for several leading MTA’s
- Deliverability Optimisation: In-depth analysis and infrastructure-level improvements
- Managed Deliverability: Outsourced email delivery monitoring and management
Their global clientele includes email service providers (ESPs), marketing and advertising agencies, as well as e-commerce companies benefit from our vendor agnostic, independent approach that is cost conscious and looks to provide enterprise grade solutions at extremely competitive price points.
What Charter Enterprise Membership Means
Enterprise membership with more full members included available on request represents the highest tier of engagement currently available with emailexpert. Charter Enterprise Members gain access to:
- Strategic Industry Influence: Direct input on emailexpert’s direction and initiatives
- Enhanced Visibility: Prominent positioning across emailexpert’s global network and events
- Exclusive Access: Priority access to industry intelligence, member-only reports, and exclusive networking opportunities
- Collaborative Opportunities: Partnership in developing industry standards and best practices
- Event Integration: Priority sponsorship and speaking opportunities at emailexpert events worldwide
Advancing the Email Community Together
At Emailexpert, we unite the community shaping the future of email: engineers, marketers, compliance leaders, abuse desk teams, technologists, and executives from across the email ecosystem. Postmastery’s Charter Enterprise Membership strengthens this mission by bringing their deep technical expertise and industry leadership to our community initiatives.
This partnership will enable enhanced educational programs, more comprehensive industry research, and expanded networking opportunities for email professionals worldwide. Together, we’re committed to:
- Elevating Professional Standards: Developing certification programs and best practice guidelines
- Fostering Innovation: Supporting new technologies and methodologies in email delivery
- Building Connections: Creating meaningful networking opportunities across the global email ecosystem
- Sharing Knowledge: Expanding access to high-quality educational content and industry insights

“We’re delighted to welcome Postmastery as a Charter Enterprise Member after years of successful collaboration. Their team’s deep technical expertise and commitment to advancing deliverability best practices perfectly aligns with emailexpert’s mission to elevate the entire email community. From sponsoring our Amsterdam event to hosting their Customer Day with us, Postmastery has consistently demonstrated their dedication to fostering knowledge sharing and professional growth. Having them as a Charter Enterprise Member strengthens our ability to provide even more value to email professionals worldwide, and I look forward to the innovative initiatives we’ll develop together over the coming years.”
– Andrew Bonar, co-founder at emailexpert
Looking Forward
As we continue to grow emailexpert’s global impact, partnerships like this with industry leaders such as Postmastery are essential. For over 15 years, we have hosted in person events and fostered a community that offers a safe and welcoming space for both industry veterans and newcomers.
With Postmastery as a Charter Enterprise Member, we’re better positioned to serve our community’s evolving needs and drive meaningful progress in email deliverability, authentication, and industry standards.
We extend our warmest welcome to the entire Postmastery team and look forward to the innovative initiatives we’ll develop together. This partnership represents not just a membership upgrade, but a commitment to shaping the future of email together.






