LONDON — For years, the global email marketing ecosystem has operated under a self-imposed segregation. On one side sit the creative marketers, copywriters, and campaign strategists obsessed with conversion rates, customer journeys, and commercial revenue. On the other side reside the deliverability engineers, infrastructure architects, and security specialists guarding the gates against spam, malware, and malicious bots.
Throughout the year, these two factions rarely meet—except to complain about one another. When campaigns fail to convert, marketers blame over-zealous deliverability filters. When inboxes get flooded with junk, infrastructure experts blame lazy, volume-driven marketing tactics.
That institutional schism is about to be challenged head-on. On November 16 and 17, the emailexpert Forum makes its inaugural London debut, bringing both halves of the industry under the same roof for a two-day crucible designed to ignite debate, challenge orthodoxies, and force hard conversations. Hosted in the striking, Grade I listed architecture of St Mary’s Marylebone, the event is capping attendance at just 250 delegates—a deliberate design choice intended to foster intense, unvarnished dialogue rather than the quiet conformity of a massive hotel ballroom. With more than half the seats already claimed, the event promises to be one of the most provocative gatherings on the European digital marketing calendar.
Main Facts: What, Where, and Who
The inaugural London Forum is structured around a simple yet radical premise: technical infrastructure and commercial marketing are two sides of the same coin, and it is time they stopped talking past each other.
The conference is anchored by a two-stage layout split across the historic church:
- The Message (Upstairs in the Great Hall): Focused squarely on marketing, CRM, the customer lifecycle, and the commercial realities of the inbox.
- The Machine (Downstairs in the Undercroft): Dedicated to the unglamorous but vital mechanics of deliverability, technical infrastructure, industry standards, and data security.
A single ticket grants full access to both floors, allowing attendees to fluidly transition between creative strategy and technical execution. Organizers note that they expect heavy foot traffic on the stairs as marketers venture downstairs to understand server reputation, and engineers head upstairs to grapple with audience engagement metrics.
The event is heavily backed by prominent industry leaders. Zeta Global and GreenArrow Email serve as headline sponsors, supported by a roster of infrastructural heavyweights including Bouncer, KumoMTA, Netcore Cloud, and Halon. True to its ethos of prioritizing substance over sales pitches, the emailexpert Forum maintains strict boundaries: sponsor input is heavily vetted, and open commercial stage-time is banned. Every session must pass rigorous tests of relevance and originality, ensuring that advisors, first-time speakers, and corporate partners are held to the exact same standard.
Chronology of the Event: The Itinerary
The London Forum is built as an immersive multi-day experience, beginning well before the official keynotes and stretching past the closing remarks.
- Sunday, November 15: Early arrivals and international delegates converge for official welcome drinks, setting the stage for networking ahead of the intensive sessions.
- Monday, November 16 (Day One): The official opening of The Message and The Machine stages. The day kicks off with foundational debates on cold emailing, data metrics, and inbox placement. Proceedings extend into a lively evening happy hour running until 19:30.
- Tuesday, November 17 (Day Two): Advanced sessions diving into AI-driven inbox sorting, Email Service Provider (ESP) responsibilities, and Customer Data Platform (CDP) utility. The formal conference concludes, followed immediately by the separately ticketed Gala dinner event.
- Wednesday, November 18: For those with lingering stamina, optional networking and social activities are organized across London, allowing international attendees to continue conversations started in the Undercroft and Great Hall.
Supporting Data and Context
To understand why an event like the London Forum is desperately needed, one must look at the shifting economics and technical barriers of the modern inbox.
- Intimacy by Design: Capping the event at 250 attendees is a deliberate rejection of mega-conferences where delegates are lost in a sea of thousands. At one-tenth the size of traditional London marketing expos, the scale ensures that speakers are accessible and accountability is high. Attendees can corner an expert after a session and debate their findings directly.
- Pricing and Accessibility: The standard registration fee is set at £725 plus VAT, which covers both days, access to both stages, full catering (including lunches and refreshments), and the Monday evening social functions. Discounted rates are available exclusively for emailexpert members.
- Historic Venue: Moving away from standard corporate hospitality, the event takes place at St Mary’s Marylebone, a neoclassical masterpiece designed by Sir Robert Smirke and completed in 1824. Located just five minutes from Marylebone station and eight minutes from Baker Street, the venue provides an inspiring backdrop for forward-looking technological debates.
Official Responses and Key Industry Debates
Rather than relying on generic keynote presentations, the entire agenda of the London Forum is constructed around unresolved industry conflicts. Organizers have curated panels featuring recognized heavyweights who hold polarized views on the future of email.
1. The Cold Email Controversy: Channel or Scourge?
Is cold email a legitimate, targeted B2B sales channel, or is it simply sophisticated spam hiding behind sales targets? This question will be put under a microscope with Raymond Dijkxhoorn, co-founder of SURBL and operator of a major blocklist, alongside representatives from Spamhaus and Yahoo. Defenders of cold outreach will have to justify their practices directly to the entities holding the keys to inbox placement, promising one of the most volatile and engaging hours of the conference.
2. Blaming the Filter: Deliverability vs. Bad Marketing
When campaign metrics plummet, marketers are quick to blame "deliverability issues" or over-reactive spam filters. However, industry veterans argue that placement is frequently scapegoated for fundamentally poor content and irrelevant messaging. Laura Atkins, Steve Atkins, and John Peters of Marigold are slated to dissect this phenomenon, bringing decades of no-nonsense operational experience to the debate.
3. The Illusion of Email Measurement
With Apple’s Mail Privacy Protection (MPP), widespread automated link-checking bots, and fragmented attribution models, traditional metrics like open rates are effectively broken. Kath Pay and Chad S. White of Zeta Global will lead discussions on how brands can navigate a landscape where standard performance indicators can no longer be trusted at face value.
4. The ESP Dilemma: Dumb Pipe or Active Gatekeeper?
Should Email Service Providers remain neutral infrastructure ("dumb pipes"), or do they have a moral and technical obligation to filter, optimize, and enforce strict sending standards on their users? Mike Hillyer and David Harris are among the experts tackling the widening grey area of platform responsibility.
5. AI, CDPs, and the Future of Inbox Triage
As artificial intelligence reshapes how consumers interact with their mailboxes—with AI summaries, auto-prioritization, and algorithmic filtering changing the game—experts like Marcel Becker and David Finger will explore whether these tools truly help recipients or simply create new barriers for legitimate brands. Additional friction points will include debates over Customer Data Platform (CDP) utility, optimal sending frequencies (featuring a friendly clash of perspectives between Dela Quist and Kath Pay), and the unique insights brought by Sarah Ebner from the Financial Times regarding digital newsletters.
Implications for the Future of Email
The debut of the emailexpert Forum in London signals a maturing of the digital marketing sector. For too long, the industry has suffered from a siloed mentality where deliverability was treated as an afterthought and marketing was pursued with reckless disregard for technical infrastructure.
By forcing marketers and engineers into the same historic building—and backing them up with a program designed to provoke rather than placate—emailexpert is establishing a new benchmark for industry discourse. The outcomes of these debates in Marylebone will likely ripple outward, influencing how brands craft their strategies, secure their infrastructure, and negotiate the ever-tightening restrictions of major mailbox providers for years to come.
For professionals who care about the long-term viability of the inbox, the message is clear: the silo walls are coming down, and the conversation is overdue.
