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Inbox Inspector
A free email testing tool to improve deliverability.
About Inbox Inspector
Inbox Inspector is a free email testing tool developed by the team at GetResponse, a leading email marketing platform. It helps marketers and businesses test their emails before sending to ensure they land in the inbox rather than the spam folder. With Inbox Inspector, users can check email deliverability across major email clients and ISPs, identify potential spam-triggering words, and optimize subject lines and content for better engagement. The tool provides a comprehensive preview of how emails appear across devices, and offers actionable recommendations to improve deliverability and open rates. By using Inbox Inspector, marketers can reduce the risk of emails being flagged as spam, enhance brand reputation, and increase campaign performance. The integration with GetResponse allows seamless send testing within the platform, but it can also be used independently. AiDOOS enhances deployment by simplifying the integration of Inbox Inspector into existing marketing workflows, providing a centralized dashboard for email testing across multiple projects, and offering automated scheduling of tests. AiDOOS's AI-driven insights help teams interpret test results and apply best practices consistently, improving email ROI.
Challenges It Solves
- Emails landing in spam folders, reducing campaign reach.
- Poor sender reputation leading to low deliverability.
- Lack of visibility into how emails render across different clients.
- Inability to identify spam-triggering words in email content.
Use Cases
Email Deliverability Testing
Marketers test emails before sending to ensure they reach the inbox.
Spam Filter Avoidance
Analyze email content to avoid spam triggers.
Pricing
Custom pricing — built for your team
Inbox Inspector pricing is tailored to your organisation's size, integrations, and requirements. AiDOOS generates your proposal instantly — scoped & ready in seconds.
Key Features
Analyzes your email content to predict spam filter behavior.
Provides a score indicating your sender reputation.
Tests subject lines for spam trigger words and length.
Shows how your email appears across major email clients.
What Reviewers Say
What works well
- Free to use, a valuable tool for businesses of all sizes.
- Simple and easy to use interface.
Common concerns
- Limited advanced features compared to paid alternatives.
- May require integration with GetResponse for full functionality.
Reviews
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Reviewer Demographics
Top Industries
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Company Size
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Enterprise Readiness
Identity & Access
Data Security
SLA & Availability
Compliance & Portability
Integrations
GetResponse
Use Inbox Inspector to test emails before sending campaigns with GetResponse.
Governance & Compliance
EU AI Act
No data available
Data Processing Agreement
No data available
Sub-processors
No data available
Right to Erasure
No data available
Change Notifications
No data available
NIST AI RMF
No data available
AiDOOS Managed Deployment
Deploy Inbox Inspector in 72 hours
AiDOOS handles setup, CRM integration, SSO config, and user provisioning. Your team goes live — not your IT department.
Prerequisites
- Valid email account
- SMTP server access
- DNS records for authentication (SPF, DKIM, DMARC)
Configuration Options
- API key setup
- Webhook endpoint configuration
- Custom test settings
How Inbox Inspector Compares
| Product | AI & Analytics | Ease of Use | Enterprise Features | Pricing | Integrations | Mobile Experience | Quick Setup | Customer Support | Rating | Price/mo |
|---|---|---|---|---|---|---|---|---|---|---|
|
I
Inbox Inspector This product
|
Fair | Excellent | Fair | Excellent | Poor | Fair | Excellent | Good | — | $Custom/user |
|
MT
Mail-Tester
|
Fair | Excellent | Poor | Excellent | Poor | Fair | Excellent | Fair | — | $Custom/user |
|
LM
Litmus
|
Good | Good | Excellent | Poor | Good | Excellent | Good | Good | — | $$99/user |
A Virtual Delivery Center for Inbox Inspector
Pre-vetted experts and AI agents in the loop, assembled as a delivery pod. Pay in Delivery Units — universal pricing across roles, seniority, and tech stacks. No hiring, no contracting, no procurement cycle.
- Plans from $2,000 — Starter Pack, 10 Delivery Units, 90 days
- Refundable on unused Delivery Units, anytime — no questions asked
- Re-delivery guarantee on acceptance miss
- Pre-flight delivery sizing — you see the plan before you commit
How a Virtual Delivery Center delivers Inbox Inspector
Outcome-based delivery via AiDOOS’s VDC model. Why VDC vs traditional consulting? →
Outcome-Based
Pay for results, not hours
Milestone-Driven
Clear deliverables at each phase
Expert Network
Access to certified specialists