Maarten Oelering

CTO, Postmastery

IT consultant with 18 years of experience in software- and systems development. Performed many roles such as software engineer, IT architect, project manager, development manager and CTO. Worked for various software and systems integration companies, from small internet startups to international enterprises (Philips and IBM). During the last 10 years, developed a unique expertise on email applications, including email marketing applications, outbound email infrastructure and deliverability.

Andrew Bonar

Managing Director, Emailexpert

Seasoned Maverick Entrepreneur | Partner at Agency.cm | Co-founder of emailexpert | International Speaker

David Harris

CEO, GreenArrow

Specialties: Email deliverability, high volume email systems, high performance software, database management, web-based software development, email deliverability

Mike Hillyer

Co-Founder, KumoMTA

With over 18 years of experience in digital product development, business development, and consulting, Mike helps large senders remove risk and upgrade their infrastructure with open-source MTA technology. As the co-founder of Kumo Corp, he lead a team of passionate and talented engineers and consultants who are committed to delivering the best email solutions for their clients.

Todd Herr

Principal Solutions Architect, GreenArrow Email

Todd Herr is the Principal Solutions Architect at GreenArrow Email, with over 20 years of expertise in email authentication and deliverability. He has a well-rounded background in the email ecosystem, having worked with email senders, mailbox providers, and vendors.

Mohammed Zaman

Implementation Consultant, DMARC Advisor

Mo's day-to-day role includes working with enterprise clients in supporting them to implement open protocols related to both email and connection security like DMARC, SPF, DKIM, BIMI, MTA-STS, SMTP-TLS RPT, & DANE. Mo has a wealth of knowledge from his 13 years in this fantastic email industry. Mo has helped organisations implement protocols and position the organisation to handle email more securely and safely.

Liam Kelly

Senior Lead Software Engineer, Klaviyo

Liam Kelly is a Senior Lead Software Engineer at Klaviyo and technical lead for the Klaviyo MTA, which delivers hundreds of millions of messages per day on behalf of Klaviyo customers. Since his start in the industry as a LISTSERV support engineer, Liam has over 25 years experience in email list management and high-volume email delivery.

John Moody

Engineering Manager, Klaviyo

John Moody leads the team building and supporting the Klaviyo MTA, which delivers hundreds of millions of messages per day on behalf on Klaviyo customers. He has 30 years experience writing code and architecting systems (and leading teams that write code and architect systems).

Raymond Dijkxhoorn

co-Founder, SURBL

Specialties: anti spam solutions, large scale mailfiltering, 5.000.000 mails/day and up. Managed server solutions, housing and colo solutions. MySQL clustering. MailScanner, SpamAssassin, Exim, Sendmail. Linux Virtual Server implementations. Network design and management. Large scale 10Gbit deployments.

Jakub Olexa

Founder, Mailkit

Involved in computer business since early 90’s, with a background in networking and systems management I was able to use my past experiences to move current projects forward and add an unique value to each of them.

Udeme Ukutt

Email Deliverability, Digital Messaging Standards & Email Governance

Udeme has 19 years of engineering expertise & thought leadership in the messaging ecosystem. It sits at the intersection of product management, digital messaging standards, email deliverability & governance, technical policy, best practices, anti-abuse, and the like. He has also supported a number of our events as an EmCee, keynote speaker, trainer, and panelist.

Matthew Vernhout

Principal Email Advisor, Email Industries

Matthew Vernhout (@emailkarma) is a leading email marketing and deliverability expert with 25+ years of experience, currently serving as Principal Email Advisor at Email Industries. Recognized as the ANA Email Thought Leader of the Year (2019) and a Top 50 Canadian Marketing Blogger (2010), Matthew is the founder of EmailKarma.net and the Canadian Email Summit, and co-founder of EmailDojo.io. He also serves as a Director at Large for CAUCE and Training Co-Chair for M3AAWG, while holding a CIPP/C certification in privacy. Author of A Complete Guide to e-Marketing under Canada's Anti-Spam Legislation, Matthew is a trusted authority in the industry, dedicated to advancing email strategy and compliance. Social Media https://ekma.co/m/EmailKarma

Prof. Dr. Ronald Petrlic

Professor, Nuremberg Institute of Technology

Professor for Information Security at TH Nürnberg & Consultant. Interested in Self-Sovereign Identity, Technical Data Protection and IT Security. In previous role: Responsible for the first GDPR fine in Germany.

Tom Mairs

Co-Founder, KumoMTA

Tom has over thirty years of experience in technology as a leader, consultant, administrator, and Customer Success expert, with the last fifteen years spent in the on-prem and cloud email infrastructure industry. Tom has led global teams responsible for the sales and support of multiple MTA and cloud email infrastructure products and is passionate about customer success.

Marcel Becker

Senior Director Product Management, Yahoo

Passionate about all aspects of E-Mail, how it connects people, consumers and brands. Frequent speaker at mail, anti-abuse and deliverability conferences such as M3AAWG, CSA and others. Particular about application design. Opinionated about project and product management best practices. Improv fanatic and occasional actor.

Martina Lipp

Marketing Consultant and Advisor

International Marketing Executive | xDisney, xDollar Shave Club, xNespresso Marketing executive and advisor with more than 15 years of international experience in CRM (Customer Relationship Management), Loyalty & Growth Marketing. Analytical and creative innovator with outstanding track record of successfully building and leading teams across multiple industries. Known for developing high performance teams by creating an environment of trust, innovation and collaboration.

Aleksandr Stankevic

Systems Wrangler, Automattic

Aleksandr Stankevič has been a Systems Administrator since 2006, bringing extensive experience across diverse industries such as education, hosting, ISPs, and finance. His expertise covers a wide range of areas, including DNS, MySQL, security, nginx, email (primarily postfix), scripting languages like Bash, PHP, Python, and Perl, as well as large-scale log management with ELK clusters that exceed 500TB. Aleksandr has a strong track record in managing high-load server environments, including supporting platforms like WordPress.com. He is particularly passionate about email infrastructure, with his journey starting from providing user support in #postfix on FreeNode to managing mail servers for a leading Lithuanian provider. Currently, he oversees high-volume, self-hosted transactional email clusters that process between 30-50 million emails each day.

Kevin A. "KAM" McGrail

Member & Chair Emeritus Apache, SpamAssassin

Kevin A. McGrail aka KAM, is the Cloud Fellow for Dito helping organizations migrate and manage their Cloud Cybersecurity. He founded and leads Dito's Cyber Security practice, awarded Google's Cloud Security partner of the year in June 2022. He is a Google Developer Expert for AI/ML and Google Workspace as well as a member expert in the U.S. Marine Corps Cyber Auxiliary. KAM enjoys working with Open Source Software and is a proud member of the Apache Software Foundation. He has battled spammers for decades and his research protects hundreds of millions of Internet users every day. In February 2025, he was awarded the Mary Litynski lifetime achievement award for keeping the internet safe from M3AAWG.org. KAM is a Center for Innovative Technology MACH37 Cyber Security Incubator Graduate and a member of the board of advisors for Virtru.com & SecurityUniversity.edu. He is also named a Distinguished Senior Fellow as a thought leader in the field of Cyber Security at Thomas University's Armed Services Institute in the Center for Military Life.

David Finger

Director of Email.cz and Mapy.cz at Seznam.cz

Experienced Senior Product Manager with a demonstrated history of working in the internet industry. Skilled in complex Product development, User Experience, Anti-Spam and Anti-Abuse, Email Marketing, Communication and Mobile Applications. Strong product management professional. Experienced national and international conference speaker

Kieran Cooper

Technical Account Specialist

Kieran Cooper is a seasoned and highly successful Technical Account Manager with 20 years of experience in supporting customers to achieve success. As a dedicated liaison, he embodies the voice of the company to the customer and vice versa. Kieran possesses a keen commercial instinct and harbors a passion for helping organizations leverage a variety of technologies to meet their objectives. He is committed to facilitating people in seizing the opportunities presented by technology, irrespective of their experience or skill levels. Kieran excels at building strong relationships at all organisational levels, both internally and externally, ensuring collaborative efforts lead to meeting customer needs. Known as a trusted technical advisor, he is always eager to learn and impart knowledge. He has a profound understanding of the email industry, particularly in deliverability, and consistently seeks to expand his expertise. At Bird, Kieran successfully supported customers with SMS, rapidly extending his knowledge base. He enjoys managing teams and has consistently received excellent feedback from colleagues whose careers he has supported and developed. Kieran is also a successful public speaker and trainer, known for his ability to explain complex topics in an accessible manner. His strong interest in data protection and privacy dates back to the 1990s. In the past five years, he has become a certified data controller and earned his CIPP/E privacy qualification.

Jon Burke

Product Manager, Infobip

Jon Burke is a dedicated and driven email deliverability expert with over a decade of experience in the field. Throughout his career, he has successfully assisted both large enterprise-level companies and small family-owned businesses. His work has taken him to various countries, allowing him to collaborate with people from diverse backgrounds. Jon is motivated by the successes of his clients and the continuous learning opportunities offered by the MarTech industry.

LB Blair

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LB is a multidisciplinary professional who is competent in computer forensic diagnostics, IT audit, SMTP Infrastructure, data analytics, and she can do it all in English and Spanish. Linkedin is the best way to reach LB to connect about how her diagnostic prowess can help your business.

Carel Bitter

CEO, Spamhaus

Carel is an integral part of Spamhaus’ fabric, having been with the organization for well over a decade. He has a deep passion for threat hunting and discovering how a bad actor's infrastructure operates - ensuring internet users are protected from nefarious activity. From malware and snowshoe spam to DNS, domains, and everything in between – you name it, Carel will have a perspective. As a recognized subject matter expert in the field, Carel can regularly be found presenting to audiences across the globe, sharing his knowledge and experience with others.

Lauren Meyer

Chief Marketing Officer, SocketLabs

Experienced Vice President of Delivery with a demonstrated history in the email industry, with strong focus on Deliverability and Compliance. Data nerd at heart. Skilled in Digital Strategy, Management, Email Marketing, Email Deliverability, Customer Success Management and SaaS Operations. Strong information technology professional with a BA focused in Communications & Advertising from Robert Morris University.

Steve Tuck

Senior Solution Architect, Halon

Based in the United Kingdom, Steve Tuck is an experienced solutions engineer with a long history with a variety of commercial MTA´s. With a deep tech background, Steve is able to advise on and address the specific challenges of the entire email ecosystem.

Nely Bonar

co-Founder, Emailexpert & Partner, Agency.cm

Hi, I'm Nely! Co-founder of Emailexpert and partner at Agency.cm, where we dive deep into content marketing, website design, brand creation, and event management. We create events like Deliverability Summit, Martech Festival and Festival of Email. Let’s connect and make something amazing!

John Peters

Deliverability Manager at Campaign Monitor

John Peters is an experienced Deliverability Manager at Campaign Monitor with over 10 years of expertise in email deliverability, reputation management, and customer advocacy. Leading a global team, he works closely with internal teams and high-value clients to optimise email performance and ensure a healthy and sustainable email ecosystem. John specialises in scalable deliverability strategies and delivering clear, actionable solutions to help senders improve inbox placement while balancing compliance, deliverability, and recipient experience. His practical approach, extensive industry knowledge, and commitment to engagement make him a trusted voice in the email deliverability space.

Mat Antoine

Email & Anti-Abuse Expert, Orange

Mat is a cybersecurity expert specializing in building and securing large-scale email infrastructures for MSP/ISPs worldwide, and enterprise-grade email routers. With deep experience in mail transfer agents, spam filtering, Mat focuses on delivering high-performance, resilient, and secure email platforms. His work spans from system architecture and deployment to ongoing threat mitigation and abuse handling. Passionate about reliable messaging systems, Mat is committed to ensuring secure, scalable, and efficient email delivery for high-volume environments.