Why Marshmellos exists
Email infrastructure has become powerful — but also unnecessarily complex.
Marshmellos aims to simplify how teams send and observe email.
Email infrastructure today
The ecosystem has different categories. Most tools solve only one part of the system.
Marketing platforms
Campaigns, lists, and automation.
Mailchimp, Brevo
Developer APIs
Send APIs for apps and transactional email.
Resend, Postmark
Delivery infrastructure
The layer that actually delivers mail.
SES and SMTP providers
What teams struggle with
Hidden delivery behavior
Black-box delivery with little visibility into what happened.
Overloaded marketing tools
Transaction-focused teams don't need full marketing suites.
Poor operational visibility
Hard to see message timelines, bounces, and events.
Fragmented tooling
API, dashboard, and delivery often split across unclear boundaries.
A cleaner product layer
Marshmellos focuses on the product layer developers interact with—not marketing suites or opaque delivery.
Our product principles
Transparency
We show delivery behavior and system direction clearly.
Simplicity
One product layer: API, templates, dashboard, visibility.
Developer clarity
Clean API, docs, and workflows so integration stays straightforward.
Honest product direction
Roadmap and positioning reflect what we build, not hype.
Where the platform is heading
From core infrastructure to observability, scale, and smarter deliverability.
Full roadmap: what's live and what's next →
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