Catalog entry · InboxRatio Editorial

MailerSend: User reviews, pricing & features

MailerSend is a transactional email API and SMTP service; mailersend.com served the product homepage directly when we verified it in August 2026. It sits in our transactional protocol line alongside the other API-first senders.

With the volume slider at the 50,000-email step, Starter costs $35/month billed monthly ($31.50 billed annually), including 10 domains, 50 webhooks, and logo removal; overage is $1.30 per 1,000 emails, and a dedicated IP is enterprise-only. A free plan sends 500 emails per month, and the $7 Hobby tier covers 5,000. Pricing checked 19 August 2026.

Measured · August 2026

Our deliverability test

84/100Good deliverability

Placement

Inbox91.4%
Tabs (Promotions / Updates)1%
Spam5.6%
Missing1.4%
Bounced0.6%

By mailbox provider

Gmail92/100
Outlook72/100
Yahoo88/100

From our pricing dataset

Pricing at a glance

Tier	Monthly price	What's included
Free	$0/mo	500 emails/mo
Hobby	$7/mo	5,000 emails/mo
Starter	$35/mo	50,000 emails/mo
Professional	$110/mo	50,000 emails/mo

Pricing checked 19 August 2026 · monthly billing, prices as shown by the vendor.

From our feature dataset

Deliverability capabilities audit

The 17 deliverability capabilities we check every vendor for — authentication help, IP management, list hygiene, and reputation tooling. This audits what MailerSend documents; it is separate from our tested deliverability ranking.

16 of 17 documented capabilities

Yes:
SPF assistance
SPF record supplied at domain verification with registrar-specific instructions
Yes:
DKIM setup
'2048-bit DKIM keys for stronger security, so you'll see two DKIM CNAME records to add instead of one'
Yes:
DMARC support
'DMARC monitoring tool enables you to create a DMARC record for your domain and monitor activity with reports' (30 days free on Starter; included on Professional)
Partial:
Dedicated IPpartial
Enterprise only — 'For high-volume senders' at 100K+ emails/week
Yes:
Shared IP pools
'premium IP pool management. You'll share IPs with other high-reputation senders and benefit from well-performing IPs with no need to warm up'
Yes:
IP warming
Dedicated IPs warmed by MailerSend — 'We'll also take care of IP warming for you, which will take approximately 1-4 weeks' (help article states 1-8 weeks)
Partial:
Automated warmuppartial
Vendor-managed warm-up included with the dedicated IP add-on (Starter and above, high-volume eligibility); shared pools need no warm-up; no self-serve warm-up tool
Not documented:
IP pools managementnot documented
Partial:
Bounce managementpartial
Return-Path CNAME — 'The address where bounces and other email feedback are sent to'; auto-suppression policy not stated

Yes:
Suppression lists
'Suppression list management' feature (paid tiers per pricing)
Partial:
Complaint managementpartial
Email feedback routed via Return-Path; complaint auto-handling not detailed
Yes:
Feedback loop handling
'If your recipient's email provider supports feedback loops, MailerSend will be notified of this, and the spam complaint will be reported in your MailerSend analytics'
Yes:
Reputation monitoring
Dashboard shows 'an overview of your account's reputation health under the Email section' based on opens, bounces, spam complaints and error responses
Partial:
Blacklist monitoringpartial
Blocklist monitors for IPs/domains, checks daily up to every 2 hours with alerts — 2 monitors on Hobby, 64 Starter, 256 Professional, not on Free
Partial:
Deliverability analyticspartial
Deliverability-rate focus + DMARC monitoring reports
Partial:
Deliverability consultingpartial
'Deliverability consultation' with dedicated account manager — Professional plan
Yes:
Domain authentication guidance
Copy-paste DNS records + 'step-by-step instructions tailored to major domain registrars (GoDaddy, Cloudflare, Namecheap, etc.)'

Items marked — are not documented by the vendor. In this category, silence is itself a signal. How we read vendor claims: methodology.

From our feature dataset

MailerSend feature matrix

What the vendor documents, category by category. ◐ marks tier-gated or limited capabilities; — means the vendor does not document it.

Email6 of 6 documented

Partial:
Marketing campaignspartial
'optimize your email campaigns with advanced email analytics' — campaign sending; full marketing suite not documented
Yes:
Transactional email
Core product — 'help you collaborate on transactional emails'
Partial:
SMTP relaypartial
'Email API and SMTP relay' — SMTP from the paid Hobby plan up
Partial:
Bulk sendingpartial
Volume-based plans; bulk-marketing tooling not documented
Yes:
Email templates
'Dynamic email templates' with multiple editors; template count plan-gated (1 Free → unlimited Professional)
Yes:
Drag-and-drop editor
'drag & drop editor' / 'Drag & drop template builder'

Automation1 of 6 documented

Not documented:
Email sequencesnot documented
no native sequence builder documented in mailersend.com/features or mailersend.com/help/integrations (automations via API, webhooks, Zapier/Make) — searched 2026-09-10
Not documented:
Drip campaignsnot documented
no native drip feature documented in mailersend.com/features or mailersend.com/help/integrations (automations via API, webhooks, Zapier/Make) — searched 2026-09-10
Partial:
Event-based automationpartial
Webhooks push message events for customer-built automation; no built-in automation documented
Not documented:
Behavioral automationnot documented
Not documented:
Workflow buildernot documented
no native workflow builder documented in mailersend.com/features or mailersend.com/help/integrations (Zapier/Make/Airtable listed) — searched 2026-09-10
Not documented:
Conditional logicnot documented

AI1 of 6 documented

Not documented:
AI email generationnot documented
No native AI writer documented; connected AI tools can create HTML emails via the MailerSend MCP server (scored in AI readiness)
Not documented:
AI subject linesnot documented
Not documented:
AI content optimizationnot documented
Not documented:
AI segmentationnot documented
Not documented:
AI campaign recommendationsnot documented
Partial:
AI agent / assistantpartial
MCP server lets external AI tools (Claude, Cursor, VSCode, Gemini CLI, ChatGPT) send/schedule emails, check authentication, bounce rate and reputation score, and 'create workflows'; no native agent

Personalization2 of 4 documented

Not documented:
Segmentationnot documented
Yes:
Dynamic content
'Dynamic email templates'
Partial:
Personalization variablespartial
Dynamic templates imply variable substitution; variable syntax not documented on fetched pages
Not documented:
Behavioral targetingnot documented

Analytics3 of 4 documented

Yes:
Opens & clicks
'Email tracking' feature
Not documented:
Conversion trackingnot documented
Yes:
Campaign reporting
'advanced email analytics' + 'Real-time email activity'; searchable activity 1-30 days by plan (365-day add-on)
Partial:
Deliverability analyticspartial
'maintain healthy deliverability rates' + DMARC monitoring reports; no inbox-placement testing stated

Developer features5 of 5 documented

Yes:
API
'flexible email API'
Partial:
SMTP APIpartial
SMTP relay from Hobby plan up
Yes:
Webhooks
Webhooks on all plans — 1 on Free/Hobby, 50 on Starter, unlimited on Professional
Yes:
SDKs / client libraries
'7 SDKs, OpenAPI collection' on all plans — PHP, Laravel, Node.js, Go, Python, Ruby, Java (developers.mailersend.com)
Yes:
Public API docs
Public API/feature docs and help center with registrar-specific guides

Marketing platform4 of 7 documented

No:
CRM
Not offered — transactional email service
Not documented:
Signup formsnot documented
Not documented:
Popupsnot documented
Not documented:
Landing pagesnot documented
No:
Chatbots
Not offered
Partial:
SMSpartial
SMS API — '100 SMS /month' on Starter and Professional, add-on on Hobby, not available on Free
Partial:
Other channelspartial
'Inbound routing' (receive replies) + email verification add-on are the extra surfaces

E-commerce4 of 5 documented

Partial:
Store integrationspartial
Official WooCommerce integration only; other stores (e.g. Shopify) via Zapier/Make automation
No:
Cart recovery
Not offered
No:
E-commerce automation
Not offered
Not documented:
Purchase trackingnot documented
No:
Product recommendations
Not offered

Features checked 10 September 2026 · from vendor documentation and official feature pages.

AI & agent readiness · checked 2026-09-10

MailerSend and AI agents

66/100AI-ready

Official MCP server · hosted, connect by URL

AI agents and assistants can work with MailerSend directly through MailerSend MCP Server: send email and SMS; manage domains, templates, webhooks, suppressions, sender identities and users

MCP server
Official.
45/45
Official agent skills
mailersend-skills (mailersend-cli) (Agent Skills (Claude Code plugin marketplace, Codex CLI))
10/10
AI assistant apps
No listing in Claude, ChatGPT or other assistant directories found.
0/20
AI-friendly docs
llms.txt · AI docs page
10/15
Built-in AI features
AI agent / assistant (partial)
1/10

Scored 0–100 from public evidence: an official MCP server weighs most (40, +5 when hosted), then official agent skills, AI assistant apps, AI-friendly docs and built-in AI features. "Not found" means we couldn't locate it on MailerSend's public pages or the official MCP registry, not that it can't exist. This is context, never part of the Deliverability Score.

Captured from the vendor website

MailerSend in screenshots

MailerSend website: homepage hero section — MailerSend homepage, August 2026
Source: vendor website · 21 August 2026

MailerSend website: product/features section — Homepage API documentation section with request code sample
Source: vendor website · 21 August 2026

Independent review platforms — shown as context; never part of our measured Deliverability Score

What users say

Trustpilot

4.3/5

223 reviews

Checked 21 August 2026

4.1/5

46 reviews

Checked 10 September 2026

Capterra

4.4/5

62 reviews

Checked 21 August 2026

Weighted average 4.3/5 across 331 reviews.Limited review base

Trustpilot counts for half of the average: it is an open platform where businesses can't remove negative reviews. G2 and Capterra share the other half, and a platform with fewer than 100 reviews counts proportionally less.

Same primary category, from our catalog

Alternatives to MailerSend

Resend

Developer-first transactional email API; a separately priced marketing product exists alongside.

View profile →

Mailtrap

Email delivery platform combining a sending API/SMTP service with a testing sandbox; each product is priced separately.

View profile →

SMTP2GO

SMTP relay and transactional email delivery service with unlimited verified sender domains on paid plans.

View profile →

Selected by catalog rule — same primary category, same depth tier first, then catalog demand order. Never hand-picked.

Generated from our datasets — every value verified and dated

Frequently asked questions

What is MailerSend?

MailerSend is a transactional email service in the InboxRatio catalog, also covering smtp provider and developer email infrastructure. Its regional focus is Global.

How much does MailerSend cost?

Paid MailerSend plans start at $7/mo (Hobby tier), prices as shown by the vendor, last checked 19 August 2026.

Does MailerSend document its deliverability capabilities?

MailerSend documents 16 of the 17 deliverability capabilities we audit every vendor for (authentication help, IP management, list hygiene, reputation tooling). This audits what the vendor documents — it is separate from our measured Deliverability Score, and undocumented items are themselves a signal. How we read vendor claims.

What do users say about MailerSend?

Across 331 reviews on Trustpilot, G2 and Capterra, MailerSend averages 4.3/5, with Trustpilot counting for half of the average. User ratings are shown as context only — never part of our measured Deliverability Score.

Has MailerSend's deliverability been tested by InboxRatio?

Yes — MailerSend was measured in our seed-list deliverability test on 31 August 2026. Results publish to the email deliverability ranking; the full protocol is documented in our methodology. How we test.

What are the main MailerSend alternatives?

From our catalog, the closest alternatives are Resend, Mailtrap and SMTP2GO — services sharing MailerSend's primary category (transactional email), selected by a neutral catalog rule, never hand-picked.