Land in every inbox.Not the spam folder.
Send transactional emails and marketing campaigns.One platform for your team, with Email API and MCP built in.
Email API
Fast and reliable email API your AI agents can work with.
MCP
Build templates, create campaigns, manage contacts, & monitor delivery stats.
FEATURES
Everything your
email stack needs.
Powerful infrastructure. Zero complexity.
Domain setup in seconds
One-click DKIM, SPF, DMARC publishing. We talk to Cloudflare, Route53, GoDaddy so you don't have to.
Infrastructure-grade delivery
Sub-second send pipeline with idempotency keys and batch API built in.
Edge-scale analytics
Open and click tracking on Cloudflare Workers. Aggregated, privacy-respecting analytics by default.
Audiences & broadcasts
Manage subscriber groups, segment contacts, run campaigns. Built-in suppression and unsubscribe.
Resend-compatible API
Drop-in REST API with Bearer auth, idempotency, and batch send. Migrate from Resend in minutes.
Reputation guardrails
Bounce and complaint auto-pause. Domain health monitoring so you never unknowingly burn your sender score.
#01 - TRANSACTIONAL EMAILS
OTPs, updates, and alerts
your users can rely on.
Send transactional emails programmatically with a clean, reliable REST API built for speed and scale.
Drop-in libraries for Node.js, Next.js, and more so you can start sending emails in minutes.
Get real-time event notifications for every delivery, open, bounce, or failure.
#02 - MARKETING EMAILS
Marketing emails that reach,
engage and convert.
Create, personalize, and send beautiful marketing emails to the right audience. From newsletters to product launches.
Gradually warm up your sending domain to build trust with mailbox providers and improve deliverability.
Segment your audience dynamically based on behavior, contact properties, and engagement signals.
Build emails without bugging your devs. Write in markdown, preview instantly, ship in minutes.
#03 - EMAIL AUTOMATION
Automate all emails from
conversion to retention.
Create welcome sequences, onboarding flows, and re-engagement campaigns that send themselves automatically.
Trigger emails based on user actions, contact property changes, or custom events from your product.
See opens, clicks, and conversions as they happen. Spot what's working and apply learnings to your next campaign.
GET STARTED TODAY
Your emails deserve better.
Join hundreds of teams already sending smarter with MailSend. No credit card required to look around.
MailSend has transformed First Dollar. Their team is responsive and adding 100k users on our $50 plan was huge saving.
Switching to MailSend was smooth. The migration was quick, the team responsive, and the product matches big players in features. I'd recommend MailSend to any startup.
We chose MailSend for its first-class email handling for LLMs and AI agents, unlike generic tools. It fits how agents think and allows LLMs to send transactional emails easily.