Mailchimp remains a strong default for event marketers who own an email list and need to move quickly. It handles the practical work well: invites, reminders, simple segmentation, landing pages, and post-event nurture. Most teams can get campaigns live without an operations specialist.
The friction shows up when the database gets messy or the program gets more complex. Mailchimp charges on stored contacts, so old names and duplicate list practices become budget problems. And while its automation is solid for reminder flows and basic nurture, it is not the place to run a sophisticated event-to-revenue machine.
For newsletters, webinar promotion, recurring workshops, and invite-based event marketing, Mailchimp still earns its place. For teams that need CRM-connected attribution and sales orchestration, HubSpot or Salesforce usually make more sense.