InboxRatio
Check your domain

Catalog entry · InboxRatio Editorial

Mailtrap: User reviews, pricing & features

Mailtrap is an email delivery platform that combines a transactional sending API and SMTP service with an email testing sandbox (the sandbox and a marketing product are priced separately from the sending API). mailtrap.io served the platform homepage directly when we verified it in August 2026.

On the Email API tab at the 50,000-email step, Basic costs $20/month — tied with Resend Pro for the cheapest USD tier passing our functional filter at that volume — with webhooks on all tiers and overage at $1.00 per 1,000. The free plan sends 4,000 emails per month with a 150-per-day cap. Pricing checked 19 August 2026.

Measured · September 2026

Our deliverability test

77/100Good deliverability

Placement

  • Inbox87.3%
  • Tabs (Promotions / Updates)1.7%
  • Spam8.7%
  • Missing1.7%
  • Bounced0.6%

By mailbox provider

  • Gmail72/100
  • Outlook75/100
  • Yahoo81/100
Deliverability tested: September 2026 · seed-list placement test, formula v0.1-pre-calibration

From our pricing dataset

Pricing at a glance

TierMonthly priceWhat's included
Free$0/mo4,000 emails/mo
Basic$20/mo50,000 emails/mo
Business$85/mo100,000 emails/mo
Enterprise$750/mo1,500,000 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 Mailtrap documents; it is separate from our tested deliverability ranking.

16 of 17 documented capabilities

  • Yes:

    SPF assistance

    'Add and verify your domain using the given DNS records (DKIM, SPF, DMARC)'

  • Yes:

    DKIM setup

    DKIM record provided at domain verification (same quote)

  • Yes:

    DMARC support

    DMARC record provided at domain verification (same quote)

  • Partial:

    Dedicated IPpartial

    Business plan+ only: 'Get a dedicated IP and automatic IP warmup for full control over your domain authority'

  • Yes:

    Shared IP pools

    'A shared IP is a default option with nearly all sending providers (including Mailtrap)'; excess volume during dedicated-IP warm-up routes through Mailtrap's shared IPs

  • Partial:

    IP warmingpartial

    Bundled with dedicated IP (Business+): 'Gradual increase of email sending volume to build a positive sender reputation'

  • Partial:

    Automated warmuppartial

    'automatic IP warmup' — Business plan+ with dedicated IP

  • Not documented:

    IP pools managementnot documented

  • Partial:

    Bounce managementpartial

    Bounce events via webhooks + bounce-rate metrics; automatic suppression policy not stated

  • Partial:

    Suppression listspartial

    'Import suppression lists or add recipients manually' with revert — paid plans only

  • Partial:

    Complaint managementpartial

    Spam-complaint events pushed via webhooks (paid tiers); auto-suppression policy not stated

  • Partial:

    Feedback loop handlingpartial

    Integrates with FBLs incl. Microsoft Outlook, Yahoo! Mail, Comcast, Mail.ru, Yandex and others; complaints shown in Stats and via webhooks. Pricing: 'Check spam complaints from more than 20 ISPs in your stats' on paid tiers (API/SMTP Basic+, Marketing Essential+); auto-suppression not stated

  • Partial:

    Reputation monitoringpartial

    'Real-time analysis and automated alerts to constantly monitor your domain health' — Business/Enterprise only

  • Partial:

    Blacklist monitoringpartial

    Email Sandbox Blacklist Report 'checks whether your IP or domain has been listed on any of the commonly used blacklists' — per-test check in the Sandbox, not continuous monitoring of sending IPs

  • Yes:

    Deliverability analytics

    'dashboards with key deliverability metrics'; 'in-depth analytics to get complete statistics for all the emails you send'

  • Partial:

    Deliverability consultingpartial

    '24/7 expert support' — 'tech support team consists of engineers and deliverability experts'; no separate consulting product stated

  • Yes:

    Domain authentication guidance

    DNS records (DKIM, SPF, DMARC) provided during domain verification

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

Mailtrap 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
  • Yes:

    Marketing campaigns

    Email Marketing product — 'Send promo campaigns'

  • Yes:

    Transactional email

    'Email API and SMTP Reliably send transactional and promo emails'

  • Yes:

    SMTP relay

    'Email API/SMTP for reliable email sending'

  • Yes:

    Bulk sending

    Bulk/marketing plans $12-$399/mo, from 30,000 emails/mo

  • Partial:

    Email templatespartial

    'email templates to reuse, upload, or create designs from scratch'; hosted templates on paid tiers only

  • Yes:

    Drag-and-drop editor

    'Email design at its finest with Mailtrap drag & drop email builder'

Automation6 of 6 documented
  • Partial:

    Email sequencespartial

    'Set up automated workflows and actions based on predefined triggers' — Email Marketing Pro plan+ only

  • Partial:

    Drip campaignspartial

    Multi-step sequences via 'Send email' steps with 'Time delay' ('Wait a specified amount of time before moving on to the next step'); automations are Email Marketing Pro plan+ (mailtrap.io/pricing/); max 20 automations

  • Partial:

    Event-based automationpartial

    Workflows on 'predefined triggers' (Email Marketing Pro+)

  • Partial:

    Behavioral automationpartial

    Behavior only via 'Contact custom event' trigger ('Starts when Mailtrap receives a custom API event'); other triggers are contact/list changes; automations Pro plan+

  • Partial:

    Workflow builderpartial

    Automated workflows (Pro+); visual builder not described on fetched pages

  • Partial:

    Conditional logicpartial

    'Conditional Split — Branch the workflow automation based on criteria'; automations Email Marketing Pro plan+

AI2 of 6 documented
  • Yes:

    AI email generation

    'Use AI to create eye-catching responsive emails'

  • 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

    Official MCP / agent access only, no native in-product agent documented — Native MCP Server + Claude Code, Cursor, Google Antigravity integrations

Personalization4 of 4 documented
  • Partial:

    Segmentationpartial

    'Segment contact lists into targeted groups based on shared attributes' — Email Marketing Pro tier+

  • Partial:

    Dynamic contentpartial

    Personalization via 'pre-saved custom fields and events'

  • Yes:

    Personalization variables

    Custom fields for personalization

  • Partial:

    Behavioral targetingpartial

    Segments rules can use 'Contact fields, Engagement metrics, List membership, Custom properties' with AND/OR logic; segmentation is Email Marketing Pro tier+

Analytics3 of 4 documented
  • Yes:

    Opens & clicks

    'Open and click tracking'

  • Not documented:

    Conversion trackingnot documented

  • Yes:

    Campaign reporting

    'Helicopter-view dashboard, detailed metrics for open, click, bounce rates'

  • Yes:

    Deliverability analytics

    'Complex and user-friendly dashboards with key deliverability metrics'

Developer features5 of 5 documented
  • Yes:

    API

    Email API core product

  • Yes:

    SMTP API

    SMTP alongside API

  • Partial:

    Webhookspartial

    'Get all event information pushed to your system' (unsubscribes, spam complaints, bounces); all paid tiers, not on Free

  • Yes:

    SDKs / client libraries

    SDKs incl. PHP, Node.js, Python, Ruby, Elixir, Scala, Perl, Java, C#, .NET

  • Yes:

    Public API docs

    Public API documentation / Help Center

Marketing platform4 of 7 documented
  • No:

    CRM

    Not offered — email delivery platform

  • Not documented:

    Signup formsnot documented

  • Not documented:

    Popupsnot documented

  • Not documented:

    Landing pagesnot documented

  • No:

    Chatbots

    Not offered

  • No:

    SMS

    Not offered — email only

  • Partial:

    Other channelspartial

    Email Sandbox testing environment is the only additional product line — 'For devs and QAs to safely test staging emails'

E-commerce0 of 5 documented
  • Not documented:

    Store integrationsnot documented

  • Not documented:

    Cart recoverynot documented

  • Not documented:

    E-commerce automationnot documented

  • Not documented:

    Purchase trackingnot documented

  • Not documented:

    Product recommendationsnot documented

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

AI & agent readiness · checked 2026-09-10

Mailtrap and AI agents

78/100AI-native

Official MCP server

AI agents and assistants can work with Mailtrap directly through Mailtrap MCP Server (mcp-mailtrap): send transactional email, send and read sandbox test emails, manage email templates

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 Mailtrap'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

Mailtrap in screenshots

Mailtrap website: homepage hero section

Mailtrap homepage, August 2026

Source: vendor website · 21 August 2026

Mailtrap website: product/features section

Homepage analytics section with deliverability dashboard UI

Source: vendor website · 21 August 2026

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

What users say

Trustpilot

3.6/5

19 reviews

Checked 21 August 2026

G2

4.8/5

77 reviews

Checked 10 September 2026

Capterra

4.8/5

36 reviews

Checked 21 August 2026

Weighted average 4.5/5 across 132 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 Mailtrap

Resend

$$

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

View profile →

SMTP2GO

$$

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

View profile →

Bird

Omnichannel platform, formerly MessageBird, with email as a core product; the retired SparkPost brand now points to Bird's email pages.

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 Mailtrap?

Mailtrap 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 Mailtrap cost?

Paid Mailtrap plans start at $20/mo (Basic tier), prices as shown by the vendor, last checked 19 August 2026.

Does Mailtrap document its deliverability capabilities?

Mailtrap 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 Mailtrap?

Across 132 reviews on Trustpilot, G2 and Capterra, Mailtrap averages 4.5/5, with Trustpilot counting for half of the average. User ratings are shown as context only — never part of our measured Deliverability Score.

Has Mailtrap's deliverability been tested by InboxRatio?

Yes — Mailtrap was measured in our seed-list deliverability test on 4 September 2026. Results publish to the email deliverability ranking; the full protocol is documented in our methodology. How we test.

What are the main Mailtrap alternatives?

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