Best MailSlurp Alternatives
Updated February 2026
Looking for alternatives to MailSlurp? We found tools across 2 categories that offer similar functionality. The top-rated alternatives include Postmark (5.0★) , ImprovMX (5.0★) , and lockrMail (5.0★).
MailSlurp vs Top Alternatives
Best Email clients Alternatives to MailSlurp
Postmark
Email for web applications
ImprovMX
Create free email aliases for your domain name
lockrMail
Protect your inbox and optimize your browsing
Steer
Perfect your communication without having to think about it
Mailgun
Email Service for Developers
MailMaestro
Your AI email copilot for Gmail and Outlook.
Mailmeteor
Everything you need for better email
GoodByEmail
Clean up your email inbox, privacy-first. Even works offline
Filo Mail
Turn your inbox into actionable to-dos
CloudHQ
Gmail Productivity Tools | Sync, Migration & Back up
MicDrop
Send audio messages in Gmail
Simplify Gmail
Brings the simplicity of Google Inbox to Gmail.
Spike
Step aside, email. This is a job for Spike
Nylas
Integrate inbox, calendar, and meetings into your app
Vocal
Simply send voice messages in Gmail
Export Emails to Sheets by cloudHQ
An email parser made easy.
Free, Private & Simple Temporary Email
Anonymous, Simple & Ad Free Temporary Email, by Internxt
Mailforge
Cold Email Infrastructure Sorted in Minutes
Lero - Email Validator
Zero bounce for founders
InboxAgents - Intelligent Unified Inbox
The intelligent unified inbox for creators & builders.
DragApp
All-in-one workspace in Gmail.
Migadu
The missing email service for domains
Boomerang for Gmail
The ultimate toolbox to control sending/receiving emails
Future Me
Send an email to your future self
Birthdays Reminder
So now you can finally delete your Facebook account
compose.ai
Write email at the speed of thought with AI.
InboxPro
Boost your productivity & turn Gmail into a powerful machine
Snoooz AI
Send personalized Out-of-Office messages
ZeroInbox.ai
#1 AI Email Organizer / Cleaner. > 1 Million Emails Cleaned
Coldscale.io
Email Provider Reducing Cold Email Outreach Costs By 91%
Best Testing and QA software Alternatives to MailSlurp
CapMonster Cloud
Captcha Solving Service
Octomind
Better QA, fewer hands on deck
Mobile FIRST
Smartphone and tablet simulator
Relicx
Test fast with Generative AI
DogQ
Testing tool that writes, heals, and suggests tests for you
Openlayer
Test, fix, and improve your ML models
UserQ
Pay as you go user testing platform in MENA
DoesQA
Rapid Test Automation
Clobbr
Easy API endpoint load testing without breaking the bank
Testpine
No Code Test Automation for Web & Mobile and Test Management
SpeedVitals
Make your website lightning fast ⚡️
Freeplay
Ship great products with LLMs
TestFlight (iOS app)
Beta testing is easier than ever
Tandemz
Recruit research participants in just a couple of clicks
Frequently Asked Questions
What are the best alternatives to MailSlurp?
The top-rated alternatives to MailSlurp include Postmark, ImprovMX, lockrMail. These tools offer similar functionality in categories like Email clients, Testing and QA software.
How many alternatives to MailSlurp are there?
There are 50 alternatives to MailSlurp listed on FactCheckTool, spanning 2 categories.
What is the highest-rated alternative to MailSlurp?
Postmark is the highest-rated alternative to MailSlurp with a rating of 5.0/5 based on 17 reviews.
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