MailerSend
MailerSend is a cloud-based transactional email and SMS infrastructure platform, founded in 2020, that serves developers, SaaS companies, digital agencies, and e-commerce businesses through a product-led growth model with a freemium tier, tiered subscriptions, and 20+ native integrations including an MCP server for AI tool integration.
- Company typePrivate
- Founded2020
- HeadquartersNew York, United States
- Headcount101–250
- GTM typeB2B
- OfferingSoftware
What MailerSend does
MailerSend is a cloud-based transactional email and SMS infrastructure platform founded in 2020 and headquartered at 228 Park Ave S, New York, with a European representative office at 88 Harcourt Street, Dublin, serving as the GDPR point of contact. The company operates as part of The Remote Company group alongside MailerLite and MailerCheck, and has 101-250 employees. The core product surface includes a RESTful Email API, SMTP relay, dynamic email templates with personalization variables, drag-and-drop / HTML / rich-text builders, inbound email routing, email verification, transactional SMS (US and Canada), webhooks, DMARC monitoring, and multi-domain management. Infrastructure is hosted on Google Cloud with EU data residency in Belgium; the platform holds GDPR, CCPA, ISO 27001, and ISO 20000-1 compliance certifications.
The technology stack is API-first, with 7 official SDKs (Node.js, Python, Java, PHP, Go, Ruby, Laravel) and 20+ native integrations covering Firebase, Supabase, WordPress/WooCommerce, Zapier, Slack, Airbyte, Airtable, and others. Differentiated recent additions include an MCP server (Model Context Protocol, 2025-Q3) for AI-tool integration and AI-powered template translation. The platform is rated G2 High Performer in Small Business (Spring 2025) and Europe (Winter 2025).
The business model is product-led growth: self-serve signup with a freemium tier (500 emails/month free, no credit card) and tiered subscriptions from $5.60/month (Hobby) to $88/month (Professional), with custom Enterprise pricing and usage overage charges of $0.90 per 1,000 emails and $1.40 per 100 SMS. Add-on revenue streams include dedicated IPs, email verification credits, domain add-ons, and data storage extensions. The company is privately held with no disclosed external venture capital funding, suggesting bootstrapped or internally funded operations. Customer segments are SaaS companies (primary), agencies (primary), e-commerce (secondary), and individual developers (secondary), with verifiable enterprise scale demonstrated by a customer sending 7 million emails.
MailerSend firmographics
Firmographics- Name
- MailerSend
- Legal name
- MailerSend, Inc.
- Website
- https://mailersend.com
- Company type
- Private
- Founded year
- 2020
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- MailerSend is a cloud-based transactional email and SMS infrastructure platform, founded in 2020, that serves developers, SaaS companies, digital agencies, and e-commerce businesses through a product-led growth model with a freemium tier, tiered subscriptions, and 20+ native integrations including an MCP server for AI tool integration.
- Ownership category
- akta.pro rank
MailerSend industry classification
Industry- Product category
- Email Delivery Infrastructure
- NAICS
- Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (5182), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (51821)
- SIC
- Services-Prepackaged Software (7372), Services-Computer Programming, Data Processing, Etc. (7370)
- akta.pro primary industry
- Email Marketing Services (Campaigns, Deliverability, Lifecycle) (BPAFAKAB)
- akta.pro secondary industry
- Email, Calendar & Scheduling (BPAMAMAC)
Keywords
Where MailerSend is headquartered
LocationHeadquarters
- HQ city
- New York
- HQ country
- United States
- HQ region
- North America
Offices2 records
Markets served
MailerSend business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Technology or R&D, Infrastructure, Personnel, Operations, Marketing or Sales
Revenue model
- Subscription Plans: Tiered monthly/annual subscription model with 5 plans: Free (500 emails/month), Hobby ($5.60/month for 5,000 emails), Starter ($28/month for 100 emails + additional at $0.90/1,000), Professional ($88/month for 50,000 emails + 150 SMS/month), and custom Enterprise pricing
- Usage Overage Charges: Overage charges at $0.90 per 1,000 emails beyond plan limits, and $1.40 per 100 SMS beyond plan limits
- Email Verification Credits: Bundled email verification credits with paid plans (10 credits on Free, 400 on Professional) and additional credits available for purchase
- Plan Add-ons: Additional paid add-ons including dedicated IPs, domain add-ons, and data storage extensions
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Freemium | Monthly | Free - Occasional email testing and sending |
| Subscription | Annual | Hobby - Personal projects and side hustles |
| Subscription | Annual | Starter - Growing startups and small businesses |
| Subscription | Annual | Professional - Agencies and white-label resellers sending at scale |
Go-to-market motion1 record
Distribution channels4 records
Marketing channels5 records
MailerSend product offering
Product offeringCore offering
MailerSend is a cloud-based email delivery platform that enables businesses and developers to send transactional and marketing emails through APIs, SMTP, and a no-code email builder. The service combines infrastructure-level email sending with template management, recipient lists, and analytics, serving as the delivery backend for application-generated and bulk email communications.
Product overview
MailerSend is a transactional email and SMS platform offering a unified product portfolio centered around an Email API and SMTP Relay as the core sending infrastructure. The platform is complemented by multiple template creation tools (Drag & Drop Builder, HTML Email Editor, Rich-Text Editor) and supports dynamic personalization, email verification, inbound email routing, and webhooks. SMS capabilities were added as an extension to the core email product. The service is offered through tiered subscription plans (Free, Hobby, Starter, Professional) with optional add-ons for dedicated IPs, email verification credits, data storage, and additional domains. Integration ecosystem includes native SDKs for major programming languages and connectors for automation platforms like Zapier.
Differentiator
Problem solved
Functional benefit
Products and services
- MailerSend Email API
- MailerSend SMTP Relay
- MailerSend Email Templates
- MailerSend Campaigns
Quantifiable outcome
- 99.5% guaranteed uptime
- +1 more outcomes
Companies that use MailerSend
Customer profileNamed customers3 records
Segments5 records
Ideal customer profiles2 records
MailerSend technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration21 records
AI capability4 records
Feature10 records
MailerSend partnerships and signals
Strategic signalPartnerships
Nine partnerships are on record, tiered core and minor.
- Google CloudcoreMailerSend infrastructure hosted on Google Cloud data centers in Belgium (EU). Services include cloud hosting, database warehousing, analytics, and AI services. MailerSend is also available on Google Cloud Marketplace for direct customer deployment.
- ZapiercoreNative Zapier integration allowing users to connect MailerSend with 5,000+ applications. Zaps can trigger emails based on events from third-party apps. SMS triggers and actions also available on Zapier.
- FirebasecoreOfficial Firebase extension allowing users to send emails containing information from Cloud Firestore documents. Adding a document triggers the extension to send an email built from the document's fields.
- SupabasecoreNative Supabase integration for sending and tracking emails from PostgreSQL databases using MailerSend.
- LaravelcoreOfficial Laravel driver for MailerSend allowing developers to use Laravel's native Mail facade with MailerSend as the transport. Simple integration via composer package.
- WordPresscoreOfficial SMTP plugin for WordPress and dedicated WooCommerce plugin for transactional emails. Improves deliverability for WordPress-hosted sites.
- BandwidthcoreThird-party SMS service provider used by MailerSend for transactional SMS services to US and Canada recipients. Bandwidth handles the actual SMS transmission.
- MailerLitecoreRelated company within The Remote Company group providing shared corporate services. MailerLite Limited serves as MailerSend's EU representative for GDPR compliance. Both companies share technical infrastructure and corporate services.
- PartnerominorAffiliate and referral program management platform enabling partners to create affiliate programs and send program emails with MailerSend.
Scale indicators6 records
Recent moves7 records
Expansion highlights6 records
MailerSend competitors and assessment
Company assessmentDirect peers
- Mailgun: Developer-oriented email API service (owned by Sinch) for sending, receiving, and tracking transactional and marketing emails. Directly competes with MailerSend on email API, SMTP relay, validation, and templating for SaaS and developer customers.
- Brevo (Sendinblue): European-headquartered multichannel marketing and transactional messaging platform offering email API, SMS, and CRM. Listed alongside MailerSend as a key industry player in the global transactional email market, with similar SMB and developer targeting.
- Postmark: Transactional email specialist owned by ActiveCampaign, focused on fast reliable delivery and developer-friendly API. Competes head-to-head with MailerSend on the same core use case (order confirmations, password resets) with similar templating and inbound routing features.
- Twilio SendGrid: Market-leading transactional and marketing email API platform, owned by Twilio. Directly comparable as a developer-focused email sending infrastructure with SDKs, webhooks, and tiered pricing; MailerSend is explicitly listed alongside SendGrid as a key industry player.
- SparkPost: Enterprise-focused transactional email API platform now owned by MessageBird/Bird. Competes with MailerSend on high-volume sending, deliverability, and analytics; relevant for the high-volume end of MailerSend's customer use cases.
Emerging players
- Customer.io: Multi-channel messaging platform for SaaS companies supporting email, push, SMS, and in-app messaging via API. Partial overlap with MailerSend on developer-led transactional and triggered messaging, particularly for SaaS use cases.
- Resend: Developer-first transactional email API startup that emphasizes React Email integration and modern developer experience. Comparable to MailerSend's target persona (developers) and features (React Email integration, SDKs, simple API), positioning it as a newer challenger.
Broad incumbents
- Amazon SES: AWS-owned transactional and bulk email sending service at very low price points. Operates broadly as part of the AWS cloud ecosystem and competes with MailerSend on email delivery economics, though with less polished developer experience and fewer team-friendly features.
- Mailchimp Transactional (Mandrill): Transactional email add-on for Mailchimp (Intuit), targeting customers already in the Mailchimp ecosystem. Overlaps with MailerSend on transactional sending for SMBs and agencies, though bundled with broader marketing automation.
Regional players
- Netcore Cloud (Pepipost): India-headquartered email API and multichannel marketing platform (formerly Pepipost). Comparable to MailerSend on transactional email API for developers, primarily serving APAC and emerging markets where MailerSend has lighter presence.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key highlights7 records
Customer concentration
MailerSend social profiles
Digital presenceMailerSend compliance and trust
Trust signalCompliance4 records
MailerSend financial estimates
Financial estimateRevenue estimate
Valuation estimate
MailerSend leadership team
Management profileNumber of profiles
Profiles1 record
MailerSend funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
MailerSend M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about MailerSend
What does MailerSend do?
MailerSend is a cloud-based email delivery platform that enables businesses and developers to send transactional and marketing emails through APIs, SMTP, and a no-code email builder. The service combines infrastructure-level email sending with template management, recipient lists, and analytics, serving as the delivery backend for application-generated and bulk email communications.
Is MailerSend a public or private company?
MailerSend is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was MailerSend founded?
MailerSend was founded in 2020. It employs 101 to 250 people.
Where is MailerSend based?
MailerSend is headquartered in New York, United States, in the North America region.
How does MailerSend make money?
Four revenue lines are on record. Subscription Plans are the primary driver. The others are usage Overage Charges, email Verification Credits and plan Add-ons.
Who are MailerSend's main competitors?
Direct peers on record are Mailgun, Brevo (Sendinblue), Postmark, Twilio SendGrid and SparkPost. Emerging players are Customer.io and Resend. Broad incumbents are Amazon SES and Mailchimp Transactional (Mandrill). Netcore Cloud (Pepipost) is listed as a regional player.
Does MailerSend have an API?
Yes. MailerSend offers a public REST API for sending transactional emails, SMS, managing domains, templates, webhooks, and more. The API supports sending emails via POST requests to https://api.mailersend.com/v1/email, bulk email sending, email personalization with {{var}} syntax, scheduled sending, custom headers, CC/BCC, attachments (up to 25MB), email encryption (S/MIME, PGP), and email threads with in_reply_to and references parameters. Rate limits vary by plan: 10 requests/min for Trial/Hobby, 15 for Starter, 30 for Professional, 60 for Enterprise. Official SDKs are available for Node.js, Python, Java, PHP, Go, and Ruby. The API also includes an MCP server for AI tool integration. Developer documentation is at developers.mailersend.com.
What industry is MailerSend in?
MailerSend's product category is Email Delivery Infrastructure. Its primary akta.pro industry code is BPAFAKAB, Email Marketing Services (Campaigns, Deliverability, Lifecycle), with a secondary code of BPAMAMAC, Email, Calendar & Scheduling. Its NAICS code is 5182 and its SIC code is 7372.