Email Verification Built for Event Teams

Confirmations, reminders, and post-event follow-ups only work if they reach the inbox. Verify your attendee list with VeriMails so a typo at registration does not become a missed attendee.

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TLDR

The short version: verify first, then send.

Registration forms collect typos, disposable inboxes, and fake addresses. Verify at signup or before reminder sends so confirmations, updates, and post-event follow-ups reach attendees who can act.

Bulk verification Verification API Catch-all detection See pricing

VeriMails event attendee email verification workflow for confirmations and reminders — Run checks at registration or before reminder sends so confirmations, reminders, and follow-ups start with cleaner attendee data.

Why event teams need email verification

Every email an attendee receives starts at a registration form, and registration forms are where bad addresses get in.

An event lives or dies by email. The confirmation carries the ticket and joining details, the reminder sequence fights the no-show rate, and the post-event emails deliver recordings, surveys, and the invitation to your next event. Every one of those messages is sent to an address an attendee typed into a registration form, often quickly and on a phone. That single field is the weakest link in the whole chain. A mistyped domain, a fake address entered to grab a free ticket, or a disposable inbox used to dodge follow-up emails all pass the form silently and only reveal themselves as bounces when you send. Verifying the address, either as the attendee registers through the API or in bulk before a send, closes that gap so the people who signed up actually receive what they signed up for.

Registration forms collect typos

Attendees rush through a form and type gmial.com or hotmial.com. A single character is the difference between a delivered confirmation and a hard bounce.

Free tickets attract fake addresses

Free and virtual events draw people who want a ticket without the follow-up emails. They enter fake or disposable addresses, which inflate your numbers and bounce on every send.

The confirmation email is critical

Attendees expect a confirmation with their ticket, calendar link, and joining details within seconds. If that transactional email bounces, the attendee never receives what they registered for.

Reminders fight no-shows

The 24-hour and same-day reminders are your strongest tools against no-shows. They are wasted on any attendee whose address was wrong from the start.

Bounces hurt your sender domain

A surge of bounces from a single event email tells Gmail and Outlook your domain is risky. That reputation hit follows you into the next event's sends.

Post-event follow-up depends on it

Recordings, surveys, thank-you offers, and next-event invites all go to the same list. A clean list keeps your post-event revenue and feedback loop intact.

How VeriMails helps event teams

Verification fits the full event lifecycle, from registration to follow-up.

Verify at the registration form

Call the REST API as an attendee submits. Catch typos and disposable addresses on the spot and prompt the attendee to fix them before they enter your database.

Bulk-verify your attendee list

Export a CSV from Eventbrite, Hopin, Cvent, or any registration platform. VeriMails auto-maps the email column and verifies the file as a background job.

Protect the confirmation send

Verifying before the confirmation goes out means the ticket, calendar link, and joining details actually reach the attendee who registered.

Catch disposable addresses

Disposable detection flags temporary mailbox providers used to grab a free ticket, so they do not bloat your attendee count or your reminder sends.

Catch-all detection

Corporate attendee domains often accept every address. VeriMails flags catch-all domains so you know which registrations carry delivery uncertainty.

Fast enough for event week

Background jobs and API checks let you re-verify before reminders and follow-up sends.

How it works

From registration export to a clean, deliverable attendee list in minutes.

Export your attendee list

Pull a CSV from Eventbrite, Hopin, Cvent, or your registration tool. Any file with an email column works.

Upload and verify

Drop the file into VeriMails. The email column maps automatically and the file runs as a background verification job.

Send confirmations and reminders

Filter to valid addresses, suppress the invalid and risky ones, and send your event communications knowing they land.

SMTP

Live mailbox checks

API

Real-time checks

CSV

Bulk verification

100

Free starting credits

Event attendee verification checklist

Use this before confirmations, reminder sequences, sponsor updates, and post-event follow-up.

Clean the list while it can still save attendance

Verify at registration when possible. Catch typos before a confirmation email ever bounces.
Run bulk verification before reminders. Clean the export before 7-day, 24-hour, and same-day reminder sends.
Review free-ticket signups. Free events and lead magnets attract more fake and disposable addresses.
Suppress invalid records before sponsor mail. Protect both attendee experience and sender reputation before promotional sends.
Clean post-event follow-up lists. Surveys, certificates, slides, and replay links only work when the email address is real.

Where verification fits

Moment	Verify	Use next
Registration	Form submissions and ticket buyers	Verification API
Reminder sends	Attendee exports and waitlists	Bulk verification
After event	Survey, replay, and sponsor follow-up lists	Email list cleaning

For conferences and recurring events, make verification part of the send checklist right next to segmentation and creative approval.

Pricing that scales with your events

Verification starts at $0.0019 per email, so cleaning an attendee list before a confirmation or reminder send costs very little per event. A 10,000 credit pack is $19, and credit packs scale up to 5 million credits for $1,499 for teams running large conferences. If you run events year-round, monthly subscriptions go from $15 to $299 per month. Every new account gets 100 free credits with no credit card, and credits never expire, so an annual flagship event can draw on credits bought months earlier. See full pricing →

We used to lose attendees simply because their confirmation bounced on a mistyped address. Verifying the list before every send fixed that, and our reminder emails finally reach the people who signed up.

Priya N. — Event Operations Manager, United States

Frequently asked questions

Everything event teams need to know about email verification.

Registration forms collect typos like gmial.com, fake addresses from people who want a free ticket without the emails, and disposable addresses used to skip a real signup. Every one of those bounces when your confirmation sends. Verifying the address at registration, or the full list before a send, removes them so confirmations land.

Yes. The VeriMails REST API checks an email in real time as an attendee submits your registration form. If the address is invalid or disposable you can prompt the attendee to correct it on the spot, before a bad address ever enters your attendee database.

They contribute to it. Reminder emails are one of the strongest tools for reducing no-shows, especially the 24-hour and same-day sends. If an attendee typed a wrong address at registration, none of those reminders reach them. Verifying the address makes sure your reminder sequence actually lands.

Bulk verification processes the file as a background job. Upload a CSV export from your registration platform, the email column maps automatically, and you can track progress in real time. That speed means you can verify right before sending a reminder or post-event email.

Verification starts at $0.0019 per email. A 10,000 credit pack is $19 and credit packs scale up to 5 million credits for $1,499. Monthly subscriptions run from $15 to $299 per month. Every account starts with 100 free credits, no credit card is required, and credits never expire.

Start verifying emails today

100 free credits. No credit card required.

Get started for free