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Email Proofing & Collaboration Tools

Perfect email collaboration

When your email proofing consists of scattered comments and back-and-forth test sends, something always slips through. Inbox Monster puts comments, approvals and version history in one workspace your whole team can use, with unlimited seats, so proofing moves faster and nothing broken reaches your customers' inbox.

See it in action
Inbox Monster proofing view of a Spring launch email with two pinned comments from Alyssa and Marco, 3 of 4 reviewers approved.

300+ leading brands run on Inbox Monster

Why email teams choose Inbox Monster for proofing

One place to review, comment, approve and version every email.

Pin feedback right on the email

Pin a comment to a specific part of the email or device, then tag a teammate. Feedback is always anchored, so issues never get lost.

One approvals dashboard, tracked end to end

Team members can request and grant approvals, with a one-page view of all pending requests and progress.

Version history built in

Save each round as a new version and roll back to any earlier one, so you always know what changed and which version got approved.

Unlimited seats for the whole team

Designers, QA, legal and stakeholders all work in one shared view, with no per-user fee.

How it works in your workflow

01 / Proof in one shared view

Your whole team on one email, for faster sends

Open an email in the Proofing tab, and everyone can review the same rendering project. Pin a comment to any part of the email or to a specific device or client, tag a teammate and resolve it in one view. Enhanced notifications keep reviewers moving, so you know when every proof is ready for primetime.

A proofing project with numbered comment pins on the email rendering and a comment thread beside it, where Alyssa tags @marco about a clipping headline on iPhone 15 Mail.
Approvals dashboard showing Creative, Legal and QA signed off with timestamps, Brand still pending after a reminder, and a shareable report link that needs no login.
02 / Approvals and shareable reports

Send confidently without bottlenecks

Route an email for approval and let each reviewer sign off in one dashboard. Share a report with a stakeholder or client who does not need a login, so the people who approve the work can see it without slowing you down.

03 / A transparent paper trail

Sign-off logs capture a project’s full history

The approval log maintains the sign-off history of each project, with notes on versions, actions taken by team members and completed approvals. You can see an exact timestamp on each sign-off and download as PDF for record-keeping.

Approval log timeline of a proofing project, from creation through a comment, two version approvals and version 4 signed off at 10:04:22 AM, with a download-as-PDF option.

By the numbers

53%

Time saved on QA by teams using Inbox Monster's Creative Suite.

80+

Pre-built rules within Inbox Monster's Custom QA, including guidelines for branding, design, legal, compliance and more.

Inbox Monster mascot

We used to have a whole string of feedback emails on a piece of creative. Keeping track of it was difficult, to say the least. They seem like small problems but they definitely add up.

Liza Herth, Head of Customer Lifecycle Marketing
Virgin Voyages

Go deeper on proofing and QA

Free resources from our email experts.

What Is Sendability?

Deliverability gets your email to the inbox. Sendability is whether it works once it lands. Here's the difference and why both matter.

Read the guide
Inbox Monster Custom QA

Inbox Monster's Custom QA empowers teams to tailor their email testing to their brand's unique needs.

Read the guide
5 Unique Creative Testing Features

Five features in the Creative Suite that speed up review, QA and sign-off on every email.

Read the guide

Explore more email goodness

Email Previews

Preview every email across 120+ clients and devices in light and dark mode before you send.

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Email Accessibility

Test every email against WCAG 2.2 AA and catch accessibility issues before send.

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Email Deliverability

See where your email actually lands, from inbox placement to sender reputation.

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Research Suite

Curate creative trends and organize emails in one collaborative workspace.

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Find your email rawwwr

We can walk you through the Creative Suite and run one of your real campaigns through proofing so you can see it in action.

Talk to an email expertSee pricing

Frequently asked questions

Straight answers from our email experts.

Can my whole team collaborate on an email together?

Yes. Anyone can pin a comment to a specific part of the email, or a specific device or client, tag a teammate and resolve it in one shared view, with unlimited seats and no per-user fee.

How do approvals work?

Each email can have one or more reviewers, who sign off on the creative. Once all reviewers approve, the project is ready to send. Every action lands in the change log, timestamped and named, for ultimate transparency.

Can I track versions of an email?

Yes. Save each iteration as a new version and roll back to any earlier one, so you always know what changed between reviews and which version was approved.

Can I share a proof with someone who does not have a login?

Yes. Share a report with a stakeholder or client so they can review without a seat.

Can I set up custom checks for my brand or compliance rules?

Yes, with Inbox Monster's Custom QA. Build rules that match your brand, design, legal and compliance needs from 80+ pre-built rules or your own. Every email gets a Sendability™ score that proves it is ready to deploy. Custom QA is available with the Enterprise plan of Inbox Monster's Creative Suite.

How is this different from just using previews?

Previews show you how an email renders. Proofing and collaboration are how your team acts on it: comment, approve, version and ship. See the Email Previews page for the rendering side.

What is an email proofing and collaboration tool?

An email proofing and collaboration tool gives your team one place to review, comment on, approve and version an email before it goes out, instead of test-send chains and scattered screenshots. Everyone works from the same email, and nothing slips through. Inbox Monster brings email proofing, collaboration, approvals and version history into one workspace with unlimited seats.

Illustration of an Inbox Monster proofing project where a reviewer named Jean K. has pinned comment one to a Monstie graphic in the email.