Every event organizer obsesses over the guest list and the run-of-show. Far fewer think hard about the emails in between — the invitations, reminders, and updates that actually move people from “maybe” to “in the room.” So we looked at what organizers are really doing with event email.

Drawing on 152,000+ events and more than 10.6 million sent messages across four business event categories — corporate, fundraiser, training, and show/performance — this report breaks down who’s sending, how those emails perform, and when they go out.

The main takeaway is a striking paradox: event email is one of the highest-performing channels in all of marketing — a 66% open rate, more than double the typical benchmark — and yet nearly 9 in 10 organizers never send a single campaign. The performance is extraordinary, and yet the adoption is not.

How we define the categories:

• Corporate — business and professional events, conferences and expos, company socials, milestones, client relations, employee appreciation, and internal meetings
• Fundraiser — galas, charity fundraisers, and school fundraisers
• Training — training sessions and L&D programs
• Show / Performance — shows and live performances

Most organizers send no email at all

Across all four categories, only about 1 in 9 events (11.6%) sends any email campaign whatsoever. Blended across every event — including the silent majority — that works out to just 0.38 campaigns per event. For a channel this effective, that’s a striking amount of unused potential.

Figure 1 — Share of events that send at least one email campaign

This isn’t a story about email being hard or unwelcome. As the next sections show, the organizers who do send see exceptional engagement. It’s a story about a default: most organizers simply never start. The single biggest lever for almost any event isn’t writing a better email, but simply sending one at all.

What it means for organizers: If you’re sending even one well-timed reminder, you’re already ahead of ~88% of your peers. The bar to outperform is remarkably low.

Corporate leads adoption; training trails

Adoption varies by event type, but never by much — and never to a level you’d call “high.” Corporate organizers are the most active, with 13% sending campaigns (0.45 per event on average). Training is the least likely to use event emails, at 9% adoption and just 0.23 campaigns per event.

Figure 2 — Email adoption rate by category (dashed line = 11.6% aggregate)

The ordering makes intuitive sense. Corporate events often have dedicated organizers or marketing support and a culture of formal communication. Training sessions tend to have captive, already-committed audiences; often a registered cohort that may feel like it needs less nudging. But even corporate’s category-leading number means 87% of those organizers still send nothing.

Takeaway:  Even the most email-active category leaves the vast majority of its events uncontacted. There’s no segment where email is anywhere close to saturated — which means there’s headroom everywhere.

Event email crushes the marketing benchmark

Here’s why the adoption gap matters so much. The overall open rate across all categories is 66.4% — roughly two to three times the 20–30% that counts as healthy in conventional email marketing. Guests who opted into an event are, unsurprisingly, highly motivated to open what the organizer sends.

Figure 3 — Open rate by category vs. the typical marketing-email range

Show/Performance events lead at a remarkable 76.5% open rate — audiences for live entertainment are excited and attentive. But no category dips below 64%; even the lowest performer roughly doubles the marketing standard. This is the rare channel where the inventory is enormous, the cost is near zero, and the engagement is best-in-class.

What it means for organizers: Don’t apply marketing-email instincts (or anxieties) to event email. Your guests want to hear from you. The risk isn’t over-emailing an engaged list — it’s under-using a channel they’re actively watching.

Takeaway:  Event emails open at ~66% — more than double standard marketing email. If you’re holding back to avoid “bothering” guests, the data says you’re leaving engagement on the table.

Deliverability stays clean — with one tell

The flip side of high engagement is low friction. Across all categories, the bounce rate sits at 1.8% and the unsubscribe rate at a negligible 0.5%. Guests aren’t just opening — they’re staying subscribed.

Figure 4 — Bounce and unsubscribe rates by category

One category stands out: fundraisers have the highest bounce rate at 2.4%. That likely reflects how fundraiser lists get built — organizers often upload donor or prospect lists with older, manually-entered contact data, rather than relying on guests who actively registered with a current email. It’s a small signal with a practical lesson about list hygiene.

What it means for organizers: If you’re importing a donor or prospect list, scrub it first — stale addresses are the one place this otherwise-pristine channel springs a leak. For everyone else, near-zero unsubscribes mean you have far more room to communicate than you probably assume.

Timing: most organizers wait until ~2 weeks out

On average, campaigns go out 28 days before the event — but the median is just 16 days. That gap reveals two distinct populations: a tail of highly organized planners who send save-the-dates far in advance, and a majority who wait until roughly two weeks out.

Figure 5 — Average vs. median days before the event that emails are sent

The category differences are revealing. Fundraisers plan furthest ahead (32-day average) — logical for events that depend on securing major donors’ calendars early. Shows and performances send closest to the date, with a median of just 10 days, acting reactively as ticket sales and promotion drive urgency.

What it means for organizers: Match your lead time to your event’s commitment curve. High-stakes, calendar-dependent events (galas, conferences) benefit from early save-the-dates; consumer and entertainment events can convert on a tighter, more urgent window. Either way, a single send two weeks out is the current default — a multi-touch sequence would distinguish you from most organizers.

Almost nobody uses scheduling

The vast majority of campaigns — 85% — are sent immediately rather than scheduled in advance. Just 15% of organizers use scheduling at all.

Figure 6 — Share of campaigns scheduled vs. sent immediately, by category

Training organizers schedule the most (19.6%) — consistent with structured L&D teams running deliberate communication cadences — while fundraisers schedule the least (12.9%). But across the board, “send now” dominates, which means most communication is reactive rather than planned.

Takeaway:  Low scheduling adoption is a second open goal. Planning a simple sequence — invite, reminder, final nudge — in advance is how you go from one reactive email to a cadence that actually drives attendance.

When organizers hit send

Send activity peaks between 9 and 11 AM UTC, inside a broad window running roughly 7 AM to 5 PM UTC. Late-night sends (11 PM–6 AM UTC) are rare.

Figure 7 — Share of campaigns by hour of day (UTC)

The distribution’s breadth points to a mix of US and international senders, plus some automated sends landing in off-peak hours. Behavior splits by category, too: corporate organizers send like professional communicators, clustering inside office hours with a sharp drop after late afternoon UTC. Show/performance sends spread more evenly through the day — fitting for consumer-facing events whose organizers may be working outside a 9-to-5. Training even shows a small evening cluster, hinting at part-time or evening-program coordinators.

What it means for organizers: With a 66% open rate, send time matters less for event email than it does for cold marketing — motivated guests open regardless. But if you want to optimize, scheduling (see above) lets you target your specific audience’s active hours rather than defaulting to whenever you happened to click send.

Headline stats at a glance

What the data says about 2026

Three findings define event email this year, and they point in the same direction.

First, the channel is exceptional. A 66% open rate, near-zero unsubscribes, and clean deliverability make event email one of the most engaged channels an organizer has access to — dramatically outperforming the marketing email most people benchmark against.

Second, almost nobody uses it. Nearly 9 in 10 events send no campaign at all, and of those that do, most send a single email, immediately, about two weeks out. Scheduling and multi-touch sequences are rare across every category.

Third, the opportunity is universal. There’s no segment where email is saturated and no category where engagement disappoints. The gap between how well event email performs and how little it’s used is the clearest, most actionable finding in the data.

For organizers, the playbook writes itself: send something rather than nothing, build a simple invite-reminder-nudge sequence instead of a lone reactive blast, scrub imported lists before the first send, and match lead time to how far ahead your guests actually commit. The audience is already opening at 66%. The only question is whether you’re showing up in their inbox at all.