Email API and SMTP relay for application messages.

What is MailerSend?
MailerSend delivers application email through an API and SMTP relay. An application creates messages and submits them for delivery through the service. Its plans provide a monthly sending allowance with different account and API limits.
MailerSend requires account approval before production use. It does not provide a hosted subscriber-list newsletter service in the plans covered here. Optional verification, SMS, dedicated IPs, and other add-ons are separate from ordinary email delivery pricing.
Official details: https://www.mailersend.com/pricing ; https://www.mailersend.com/help/plans-features-and-limits
Pricing: A free allowance and paid monthly plans are available; eligible paid overages are billed separately. Account approval is required. Pricing checked October 26, 2026.
Features
- Email API
- SMTP relay
- Bulk sending
- Monthly volume plans
FAQs
Common questions about MailerSend
Does MailerSend include newsletter subscriber management?
Are API request limits the same as email limits?
Insights
Traffic and momentum for MailerSend
What are alternatives to MailerSend?
6 similar tools
AgentMail
API-first email for AI agents — give any app or agent its own inbox to send, receive, and reply to emails programmatically.
Stripe
Payments and financial infrastructure for the internet — checkout, subscriptions, invoicing, marketplaces, fraud tools, and tax, in 135+ currencies.
OpenRouter
One API for 500+ AI models across 80+ providers — pay with credits that work anywhere, with automatic fallback when a provider goes down.
Agent Score by Fern
Check if your documentation is AI-ready — run 22 checks and get a letter grade in seconds.

Plaid
Connect your app to users' bank accounts — the API that powers fintech. Build financial products with easy, safe, and reliable data access.
Firehose
Real-time web data streaming API — define filter rules and receive instant updates when matching pages are crawled.
Ask AI about MailerSend
Share
Similar Launches
AgentMail
API-first email for AI agents — give any app or agent its own inbox to send, receive, and reply to emails programmatically.
Stripe
Payments and financial infrastructure for the internet — checkout, subscriptions, invoicing, marketplaces, fraud tools, and tax, in 135+ currencies.
OpenRouter
One API for 500+ AI models across 80+ providers — pay with credits that work anywhere, with automatic fallback when a provider goes down.
Agent Score by Fern
Check if your documentation is AI-ready — run 22 checks and get a letter grade in seconds.

Plaid
Connect your app to users' bank accounts — the API that powers fintech. Build financial products with easy, safe, and reliable data access.
Firehose
Real-time web data streaming API — define filter rules and receive instant updates when matching pages are crawled.
Comments