Opt-Inbox Ratings (September 2025)
This page breaks down Opt-Inbox ratings from all verified review sources to give you a clear, unbiased view of what real users think in September 2025.
We’ve aggregated the latest scores from all major platforms like Trustpilot, G2, Capterra and many more to help you understand Opt-Inbox’s overall reputation. This data-driven overview will show you exactly how Opt-Inbox is rated - including how it compares to competitors.
Opt-Inbox's Overall Rating Summary
- Average Rating:4.0/5
- Total Reviews:3 reviews
- Sources:G2, Capterra
- Last updated:September 1, 2025
G2
CapterraWhat is Opt-Inbox?
Sendio’s Opt-Inbox is a proprietary sender management process that ensures recipients only receive messages from desirable sources, significantly reducing inbox clutter and providing control over which messages make it into their inbox. It integrates with existing email security solutions, including Microsoft 365, to eliminate nuisance messages and manage permitted senders, offering an extra layer of protection against spoofing and phishing. Opt-Inbox categorizes senders into Accepted, Dropped, or Hold, based on historical choices and communications, enhancing email productivity and security.
🤔 Opt-Inbox vs Competitors: How Do Ratings Compare?
Check out Opt-Inbox AlternativesFrequently Asked Questions
How trustworthy is Opt-Inbox?
According to Capterra review site Opt-Inbox holds rating of 4/5, indicating that users consistently find value and reliability in the platform as of September 2025.
How many stars is Opt-Inbox rated?
Opt-Inbox has an average star rating of 4.0 out of 5 stars based on average of 3 reviews as of September 2025.
Where does the rating data come from?
The ratings are pulled from Opt-Inbox public reviews pages on platforms: G2, Capterra. We update these ratings monthly to ensure they reflect the most current customer feedback.
How overall average rating for Opt-Inbox is calculated?
The overall average rating is calculated by taking the weighted average of all ratings, using the total reviews count from each platform as the weight.