Category
Email Deliverability
Key features
Email rendering previews
Proofing and QA checks
Inbox placement monitoring
01 — Overview
What is
Inbox Monster
Inbox Monster is an email testing and deliverability platform that covers the work before and after a send. Teams preview emails across more than 120 clients, proof and QA links, accessibility and translations, then monitor inbox placement, spam traps and sender reputation once campaigns go out. It also offers research tools for browsing other brands' emails and SMS delivery metrics.
02 — Who it’s for
Ideal Customer Profile
Email marketing teams at mid-market and enterprise brands, including designers, coders, QA staff, marketers and deliverability analysts.
03 — Capabilities
Key Features
Email rendering previews
Proofing and QA checks
Inbox placement monitoring
Spam trap and reputation insights
Email research library
SMS delivery metrics
05 — Similar tools
Alternatives
Litmus
Build, test and monitor marketing emails
GlockApps
Inbox placement testing and deliverability monitoring
Mailtrap
Email sending, testing and delivery platform
Kickbox
Email verification for cleaner, deliverable lists
Senders
Hands-on email deliverability experts
MailMonitor
Email deliverability testing, monitoring and fixes
06 — FAQ
Frequently Asked Questions
What is Inbox Monster used for?
It is used to test and proof emails before sending and to monitor inbox placement, spam traps and sender reputation after sending.
Who uses Inbox Monster?
Email teams at larger brands use it, with tools aimed at creatives and coders, QA teams, marketers and deliverability analysts. The site says 300 plus brands run on it.
How many email clients can I preview?
The site says it offers more than 120 email client previews, including dark mode.
Does Inbox Monster cover SMS?
Yes. It has an SMS product that gives a snapshot of text message delivery metrics.