--- title: IronVest InboxGuard Reviews meta\_title: 'IronVest InboxGuard Reviews 2026: Details, Pricing, & Features | G2' meta\_description: Filter 24 reviews by the users' company size, role or industry to find out how IronVest InboxGuard works for a business like yours. aggregate\_rating: rating\_value: 4.8 review\_count: 24 scale: '5' date\_modified: '2026-08-07' parent\_category: name: Email Security url: https://www.g2.com/categories/email-security --- # IronVest InboxGuard Reviews & Product Details IronVest InboxGuard, previously "Retruster", is the only AI-powered anti-phishing solution that delivers security training both contextually and in real-time on actual phishing emails that your organization might receive. We layer our solution with an immersive security training program that offers consistently updated, relevant, and highly engaging content that is specifically designed to change employee behavior and promote a strong security culture throughout your enterprise. * * * Seller [Retruster Ltd](https://www.g2.com/sellers/retruster-ltd) Discussions [IronVest InboxGuard Community](https://www.g2.com/products/ironvest-inboxguard/discuss) Overview by Michael Snape (CEO at Retruster, for advanced email protection. Join Fortune 500 companies and SMBs - isn't it time you were protected?) Show More ## Value at a Glance Averages based on real user reviews. ### Perceived Cost $$$$$ [ View More Pricing Information ](https://www.g2.com/products/ironvest-inboxguard/pricing) ## Top-Rated Alternatives [ ![Proofpoint Core Email Protection](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Proofpoint Core Email Protection") Proofpoint Core Email Protection 4.6/5(601) ](https://www.g2.com/products/proofpoint-core-email-protection/reviews) [ ![Mimecast Advanced Email Security](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Mimecast Advanced Email Security") Mimecast Advanced Email Security 4.4/5(348) ](https://www.g2.com/products/mimecast-advanced-email-security/reviews) [ ![Acronis Cyber Protect Cloud](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Acronis Cyber Protect Cloud") Acronis Cyber Protect Cloud 4.7/5(1,442) ](https://www.g2.com/products/acronis-cyber-protect-cloud/reviews) [ View All Alternatives ](https://www.g2.com/products/ironvest-inboxguard/competitors/alternatives) ## User Insights Average based on 24 real user reviews. Perceived Cost $$$$$ [Log in to unlock pricing and user insights](/login) ![Verified User in Computer Software](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Computer Software") UC Verified User in Computer Software Small-Business (50 or fewer emp.) 9/8/2019 "Best Email Security" 5/5 What do you like best about IronVest InboxGuard? I never have to worry about an email being phishing, or fraud. Before Retruster, if I received an email from a big client or even our bank, I would have to second-guess and look at the url, the original email and even the servers it bounced through. With Retruster in place, I can see instantly if an email is legitimate, or if it is a phishing attempt. Review collected by and hosted on G2.com. What do you dislike about IronVest InboxGuard? It would be great to be able to change colors on some of the information blocks. Review collected by and hosted on G2.com. Recommendations to others considering IronVest InboxGuard: I can really recommend Retruster. It's something I feel every company can benefit from and should be using. Review collected by and hosted on G2.com. What problems is IronVest InboxGuard solving and how is that benefiting you? I used to spend a lot of time - sometimes hours - trying to work out whether an email is genuine. Now, I know I can rely on Retruster. Review collected by and hosted on G2.com. Show More 9/10/2019 Current UserValidated ReviewerSource: Organic SP Sarah P. Administrator Small-Business (50 or fewer emp.) 9/25/2019 "Excellent product" 5/5 What do you like best about IronVest InboxGuard? The dashboard is incredible. I'm able to have a great view of my entire organization from one place, and take actions where necessary. Review collected by and hosted on G2.com. What do you dislike about IronVest InboxGuard? Very few downsides. If anything it would be great if there were more options to change colors users see. Review collected by and hosted on G2.com. Recommendations to others considering IronVest InboxGuard: Go through your whitelist and blacklists early, it will save you lots of time down the line. Review collected by and hosted on G2.com. What problems is IronVest InboxGuard solving and how is that benefiting you? Phishing emails, spear phishing, BEC-type of emails. Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerSource: Organic ![Loni S.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Loni S.") LS Loni S. Founder & CEO Marketing and Advertising Small-Business (50 or fewer emp.) 2/27/2019 "Solves The Phishing Problem and Gives Visibility" 4.5/5 What do you like best about IronVest InboxGuard? The visibility it gives me into my organization's email function, and the way it effectively stops phishing emails. Review collected by and hosted on G2.com. What do you dislike about IronVest InboxGuard? Could have sms warning in addition to the email warnings. Review collected by and hosted on G2.com. Recommendations to others considering IronVest InboxGuard: Totally worth it, you won't regret it. Review collected by and hosted on G2.com. What problems is IronVest InboxGuard solving and how is that benefiting you? We had issues with being targeted by phishing emails, especially from some regular suppliers. Now we don't have to second-guess every email, and can conduct our business without being worried. Review collected by and hosted on G2.com. Show More 9/27/2019 Current UserValidated ReviewerSource: Seller invite ![Verified User in Information Technology and Services](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Information Technology and Services") UI Verified User in Information Technology and Services Small-Business (50 or fewer emp.) 12/4/2019 "Retruster has been great for phishing emails" 5/5 What do you like best about IronVest InboxGuard? I like how it warns me when a phishing email has been received Review collected by and hosted on G2.com. What do you dislike about IronVest InboxGuard? My experience has been really good, nothing to dislike in my opinion Review collected by and hosted on G2.com. What problems is IronVest InboxGuard solving and how is that benefiting you? With this product, where in the past I was getting numerous phishing emails -- to a point where it was getting frustrating -- I now trust Retruster to take care of this problem for me. Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerSource: Organic ![Verified User in Computer Software](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Computer Software") UC Verified User in Computer Software Small-Business (50 or fewer emp.) 9/2/2019 "Excellent way to stop phishing!" 5/5 What do you like best about IronVest InboxGuard? I never need to double check myself or colleagues, and can trust emails I receive. I used to have to research, call and do a whole bunch of other activities when I received an email I wasn't sure about. Now I can know what's real and what's phishing in an instant. Review collected by and hosted on G2.com. What do you dislike about IronVest InboxGuard? Nothing. It's a great tool that me and my team use all the time. Review collected by and hosted on G2.com. Recommendations to others considering IronVest InboxGuard: Take the time to go through all the features available. I only did this recently and regret not going through it earlier. Review collected by and hosted on G2.com. What problems is IronVest InboxGuard solving and how is that benefiting you? The problem of phishing emails, fake emails, and other types of malicious attacks over email. Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerSource: Organic MW Mark W. General Manager Mid-Market (51-1000 emp.) 10/24/2019 "Highly recommend Retruster" 5/5 What do you like best about IronVest InboxGuard? Ease of use, how clear and effective the tool is Review collected by and hosted on G2.com. What do you dislike about IronVest InboxGuard? Can't say I dislike anything - it's a great product Review collected by and hosted on G2.com. What problems is IronVest InboxGuard solving and how is that benefiting you? Problems we're solving are of course malicious emails, phishing attacks and so on Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerSource: Organic ![Verified User in Real Estate](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Real Estate") UR Verified User in Real Estate Mid-Market (51-1000 emp.) 10/29/2019 "Retruster email protection" 5/5 What do you like best about IronVest InboxGuard? You don't need to be an expert to use the software. It works straight away and is really easy. Review collected by and hosted on G2.com. What do you dislike about IronVest InboxGuard? I don't dislike anything about Retruster. Review collected by and hosted on G2.com. Recommendations to others considering IronVest InboxGuard: I recommend Retruster to others Review collected by and hosted on G2.com. What problems is IronVest InboxGuard solving and how is that benefiting you? I am able to tell if incoming emails are real or not Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerSource: Organic ![Liora G.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Liora G.") LG Liora G. CEO Small-Business (50 or fewer emp.) 3/13/2019 "Best Email Phishing Solution Out There" 4.5/5 What do you like best about IronVest InboxGuard? The way I can actually see what's good or bad with an email - things I would not have been able to see without this product. My users love it too, and we don't need to dig too deep to try figure out if something is real or fake. Review collected by and hosted on G2.com. What do you dislike about IronVest InboxGuard? Not much, it's a great product. If there was one thing I would like more of, it's the Reneural feature which maps out my entire organization's emails. Review collected by and hosted on G2.com. Recommendations to others considering IronVest InboxGuard: Get it now. Seriously, everyone should have it. Review collected by and hosted on G2.com. What problems is IronVest InboxGuard solving and how is that benefiting you? It has stopped supplier fraud, I know when emails and invoices are real or fake (especially with international suppliers). I can trust emails from my bank, etc. Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerSource: Organic NS Neill S. Managing Director Mid-Market (51-1000 emp.) 3/31/2019 "This Product Is A Gamechanger!" 5/5 What do you like best about IronVest InboxGuard? Before I used Retruster, I had no idea if emails I was getting were genuine or not. Now, Retruster is the first thing I look at. We have discovered so many fake emails. Now my staff know what to look out for, and we're smarter and better protected. Review collected by and hosted on G2.com. What do you dislike about IronVest InboxGuard? Nothing to dislike, it's a great product that to be honest, everyone should be using. Review collected by and hosted on G2.com. Recommendations to others considering IronVest InboxGuard: Definitely use it, highly recommended. Review collected by and hosted on G2.com. What problems is IronVest InboxGuard solving and how is that benefiting you? We receive lots of supplier invoices, changes of banking details, emails with overseas companies. We need to know if emails are safe. With Retruster, we can see that immediately. Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerSource: Organic ![Verified User in Hospital & Health Care](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Hospital & Health Care") UH Verified User in Hospital & Health Care Mid-Market (51-1000 emp.) 11/13/2019 "A really great product to stop phishing emails" 5/5 What do you like best about IronVest InboxGuard? I love how easy it is to use, and how all of our users are kept protected. Review collected by and hosted on G2.com. What do you dislike about IronVest InboxGuard? There is not much to dislike. The product works out the box, and we're really happy with it. Review collected by and hosted on G2.com. Recommendations to others considering IronVest InboxGuard: Get it - you won't regret it! Review collected by and hosted on G2.com. What problems is IronVest InboxGuard solving and how is that benefiting you? We've seen a dramatic decrease in the impact of phishing emails. And I certainly sleep easier at night. Review collected by and hosted on G2.com. Show More Validated ReviewerSource: Organic ## Questions about IronVest InboxGuard? Ask real users or explore answers from the community Get practical answers, real workflows, and honest pros and cons from the G2 community or share your insights. [ Ask about IronVest InboxGuard ](https://www.g2.com/products/ironvest-inboxguard/discussions/new) GU Guest User What is Retruster used for? 0 Upvotes 0 [ Join the conversation ](https://www.g2.com/discussions/what-is-retruster-used-for) [ View all Discussions ](https://www.g2.com/products/ironvest-inboxguard/discuss) ##### Pricing Pricing details for this product isn’t currently available. Visit the vendor’s website to learn more. [ View More Pricing Information ](https://www.g2.com/products/ironvest-inboxguard/pricing) IronVest InboxGuard Comparisons ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/small_square/small_square_b00eebb9d7957901dc4176f594f678a9/spamtitan-email-security.jpg "Product Avatar Image") SpamTitan Email Security 4.5/5(199) [ Compare Now ](https://www.g2.com/compare/ironvest-inboxguard-vs-spamtitan-email-security) ##### ##### IronVest InboxGuard Features Administration Intelligence Reporting Email Integration Suppor Maintenance Allow and block lists Security Anti-Malware/Anti-Spam Quarantine [ View More Features ](https://www.g2.com/products/ironvest-inboxguard/features) ##### Categories on G2 [Cloud Email Security](https://www.g2.com/categories/cloud-email-security)[Email Anti-spam](https://www.g2.com/categories/email-anti-spam)[Intelligent Email Protection](https://www.g2.com/categories/intelligent-email-protection) ##### Explore More [Award-winning performance management software for software companies](https://www.g2.com/discussions/award-winning-performance-management-software-for-software-companies-what-delivers-real-roi)[Are there affiliate marketing platforms that consistently reduce the manual back and forth involved in managing a growing partner network?](https://www.g2.com/discussions/are-there-affiliate-marketing-platforms-that-consistently-reduce-the-manual-back-and-forth-involved-in-managing-a-growing-partner-network)[Which awards management platforms offer customizable workflows matching a company's unique recognition culture?](https://www.g2.com/discussions/which-awards-management-platforms-offer-customizable-workflows-matching-a-company-s-unique-recognition-culture) [Top-rated customer relationship management software for mid-size businesses](https://www.g2.com/discussions/crm-top-rated-customer-relationship-management-software-for-mid-size-businesses)[Which grant management solutions provide the easiest deployment and fastest time to value for enterprise implementations?](https://www.g2.com/discussions/which-grant-management-solutions-provide-the-easiest-deployment-and-fastest-time-to-value-for-enterprise-implementations)[Which cloud directory platform gives a small business the easiest user and group management without needing a full-time IT person to keep it running?](https://www.g2.com/discussions/which-cloud-directory-platform-gives-a-small-business-the-easiest-user-and-group-management-without-needing-a-full-time-it-person-to-keep-it-running) [Show MoreShow Less](javascript:void(0);)