--- title: Mimecast Advanced Email Security Reviews meta\_title: 'Mimecast Advanced Email Security Reviews 2026: Details, Pricing, & Features | G2' meta\_description: Filter 349 reviews by the users' company size, role or industry to find out how Mimecast Advanced Email Security works for a business like yours. aggregate\_rating: rating\_value: 4.4 review\_count: 349 scale: '5' date\_modified: '2026-08-12' parent\_category: name: Email Security url: https://www.g2.com/categories/email-security --- # Mimecast Advanced Email Security Reviews & Product Details Visit Website Email Security, Cloud Integrated (CI) protects organizations against all forms of email-based attacks, from phishing and credential theft to ransomware and zero-day threats. This solution deploys behind M365 to collect emails after they have passed through Microsoft security, reinspect them, and take action as needed. With a setup time of just four minutes and out-of-the-box settings designed to optimize security immediately, Email Security CI delivers best-in-class efficacy in the simplest way possible. Customers get the full power of Mimecast’s AI-powered detection and threat intelligence in a solution built for the reality of navigating today’s hostile threat landscape with limited time and resources. Email Security CI also offers a fully integrated Awareness Training solution to help organizations easily and effectively reduce the risk of human error. * * * Product Website Mimecast Advanced Email Security Seller [Mimecast](https://www.g2.com/sellers/mimecast) Discussions [Mimecast Advanced Email Security Community](https://www.g2.com/products/mimecast-advanced-email-security/discuss) Languages Supported German, English Solution Type All-in-One Show More ## Value at a Glance Averages based on real user reviews. ### Time to Implement 2 months [ View More Pricing Information ](https://www.g2.com/products/mimecast-advanced-email-security/pricing) ## Mimecast Advanced Email Security Integrations (3) What do users say about integrations? Verified by Mimecast Advanced Email Security [ ![Product Avatar Image](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Product Avatar Image") Microsoft 365 ](https://www.g2.com/products/microsoft365/reviews)[ ![Product Avatar Image](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Product Avatar Image") Microsoft Outlook ](https://www.g2.com/products/microsoft-outlook/reviews)[ ![Product Avatar Image](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Product Avatar Image") Microsoft Teams ](https://www.g2.com/products/microsoft-teams/reviews) Show More RD Ricky D. Systems Administrator Mid-Market (51-1000 emp.) 8/8/2024 "Mimecast is a daily system we utilize" 4.5/5 What do you like best about Mimecast Advanced Email Security? There are so many features for Mimecast that we use daily, it is hard to summarize what we like best. I will instead highlight one feature that we like, however is not "the best" one. That feature is the ability to create customized filters for emails. Mimecast assists our company by filtering out most, if not all credit card information sent via email. Being PCI compliant, this is key for our company to do the absolute best to prevent sensitive data from being transmitted. I was not involved with the implementation, however I have had to use support a couple of times and those times yielded a quick response each time. Review collected by and hosted on G2.com. What do you dislike about Mimecast Advanced Email Security? there is not much to say, however if there was a way to not require MFA on every login on the same device that would be great. Review collected by and hosted on G2.com. What problems is Mimecast Advanced Email Security solving and how is that benefiting you? The advanced email filtering and scanning helps our org so that we do not have to rely solely on Microsoft exchange in doing the entire job. Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerIncentivizedSource: G2 invite on behalf of seller SR Simon R. IT security manager Internet Small-Business (50 or fewer emp.) 10/20/2024 "No more phishing headaches" 4.5/5 What do you like best about Mimecast Advanced Email Security? The speaking point about Mimecast that I like most is a rich number of options for email protection. The usage of filtration and blocks against getting spam and malware has been often useful in this software. Its strong attachment and URL scanning features make it possible to have the assurance that all kinds of email hazards are dealt with. The software also makes sure that our data never gets to be breached while we are still working and this has been a plus for us. Review collected by and hosted on G2.com. What do you dislike about Mimecast Advanced Email Security? I have one issue with Mimecast, and it is that it is a program that likes to mark genuine emails as threats. Frequent arguments and postponements occur and essential messages are isolated leading to more frequent chaos. Number of false positive has affected our workflow greatly in that we spend a lot of time reviewing them. This is especially disruptive when it comes to communicating with clients and partners – it can be quite inconvenient when, for example, we are up against a certain deadline. Review collected by and hosted on G2.com. What problems is Mimecast Advanced Email Security solving and how is that benefiting you? Mimecast has been very good in addressing the issue of having to deal with ongoing email born threats such as phishing and malware. Earlier, we often fell victim to phishing scams which posed high risks to our data. These threats are effectively prevented by its regular scanning and comprehensive protection, so we can work more confidently. We do not experience any disturbances from the side of email security, the team is more devoted to business processes rather than security ones. Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite on behalf of seller ![Verified User in Higher Education](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Higher Education") UH Verified User in Higher Education Enterprise (\> 1000 emp.) 2/14/2024 "Mimecast is great for archive" 4/5 What do you like best about Mimecast Advanced Email Security? Mimecast archives all emails and helps maintain security. Review collected by and hosted on G2.com. What do you dislike about Mimecast Advanced Email Security? Sometimes hard to find emails in search. Mimecast occasionally will "hold" legitimate emails. Review collected by and hosted on G2.com. What problems is Mimecast Advanced Email Security solving and how is that benefiting you? Helps keep our email safe and archived. Review collected by and hosted on G2.com. Show More 6/12/2025 Current UserValidated ReviewerIncentivizedSource: G2 invite ![Verified User in Insurance](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Insurance") AI Verified User in Insurance Mid-Market (51-1000 emp.) 2/14/2025 "Great system but with some problems" 3.5/5 What do you like best about Mimecast Advanced Email Security? Once configured the system works well and does it's job without any further intervention. There are a good number of features and the archiving system works well Review collected by and hosted on G2.com. What do you dislike about Mimecast Advanced Email Security? There still seem to be a number of bugs in the system, such as SAML errors when logging in. This happens with a number of our admin users. Initial setup was quite complicated Review collected by and hosted on G2.com. What problems is Mimecast Advanced Email Security solving and how is that benefiting you? The system provides our email security and archiving solution. It means we can easily managed our systems via a cloud based platform Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerIncentivizedSource: G2 invite on behalf of seller MY Michael Y. IT Manager Mid-Market (51-1000 emp.) 9/13/2024 "Reliable, robust, feature rich and always innovating" 5/5 What do you like best about Mimecast Advanced Email Security? I appreciate the real-time view of email using the tracking feature. Being able to see immediately the receipt of emails and how they are being assesed is really important. Also, the great range of security features make me confortable that Mimecast is protecting us. Review collected by and hosted on G2.com. What do you dislike about Mimecast Advanced Email Security? Not much to dislike. It has all the features and services I care about in email security, with a few extras our users love, like Large File Send. Review collected by and hosted on G2.com. What problems is Mimecast Advanced Email Security solving and how is that benefiting you? Mimecast is scanning and detecting threats to our inbound email. These threats range from typical AV infected emails, to phishing, to impersonation attempts, to URL hijacking. Mimecast also offers a 99 year archive, so we can restore individual or bulk mail from users going back to day-1. Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerIncentivizedSource: Seller invite ![Verified User in Staffing and Recruiting](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Staffing and Recruiting") AS Verified User in Staffing and Recruiting Mid-Market (51-1000 emp.) 9/23/2024 "Mimecast is an outstanding product for great value for money" 4.5/5 What do you like best about Mimecast Advanced Email Security? We use mimecast as an email gateway in which we connect a number of exchange servers too, which is easy to connect up too and synchronises with our Active Directory. I am an administrator and I regularly use Mimecast to support our group. The user interface is easy to get around to investigate email delivery as well as reports on nasty emails. The biggest positive of Mimecast is the protection against spam emails, where it captures 99% of spam as well as many phishing attempts and malicious emails. This and many of Mimecasts other features such as stationary, email archive and reports, makes Mimecast a valuable product to our organisation for excellent value. We rarely require support from customer services, but when we do, they are supportive and help us fix any issues. Review collected by and hosted on G2.com. What do you dislike about Mimecast Advanced Email Security? There is not a lot I dislike about Mimecast Email Security so this is probably nit picking a bit. Where I say Mimecast captures 99% of the spam, it would be the 1% that gets through where our users will assume it is safe and get caught out by the trap. I don't think any Email Security system would be 100% but would be nice if those 1% if emails included a mimecast warning that this could be a malicious attempt. The Mimecast Administration console has vastly improved over the last year or so making it easier to navigate. The only issue I have is sometimes when reports are loading, it would be nice to see a loading bar or spinning circle or something to signify that Mimecast is working on it. Review collected by and hosted on G2.com. What problems is Mimecast Advanced Email Security solving and how is that benefiting you? Our organisation sends and recieves a lot of emails, without mimecast our users would be inundated with spam and malicious emails. The sandboxing and hold boxes provide our staff with the the ability to check flagged emails without the need for me to do anything. The policies are straight forward and can be applied to groups of people as well as individuals. With our current setup, new staff can be added to our systems without any need of any further configuration as it is automatically handled with Mimecast. I rarely need to do anything on Mimecast other than look at reports because the product is setup and does everything automatically. Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerIncentivizedSource: Seller invite ![Eric K.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Eric K.") EK Eric K. IT Manager Small-Business (50 or fewer emp.) 2/25/2025 "Capable and robust, if a little complex" 4.5/5 What do you like best about Mimecast Advanced Email Security? It's good at keeping our email safe. It's doing what it says it'll do Review collected by and hosted on G2.com. What do you dislike about Mimecast Advanced Email Security? The UI and some of the way things are configured are a bit too complex. Review collected by and hosted on G2.com. What problems is Mimecast Advanced Email Security solving and how is that benefiting you? Flagging suspicious email, blocking spam, etc Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerSource: G2 invite on behalf of seller MB Mark B. IT Manager/Cyber Defence Officer Mid-Market (51-1000 emp.) 9/16/2024 "Exceptional Product, Outstanding Support – Mimecast Delivers Beyond Expectations!" 5/5 What do you like best about Mimecast Advanced Email Security? What stands out most about Mimecast is how comprehensive yet simple it is. Despite the platform’s powerful and robust email security features, it's incredibly easy to use. The interface is so intuitive that anyone, regardless of technical background, can navigate and manage it effectively. This has been a game changer for our team, as we can focus on our core tasks while Mimecast silently but effectively guards our email communications. Another huge benefit is their exceptional support. From the start, their team was dedicated to ensuring we understood every feature. The onboarding experience was particularly impressive – they didn’t just set us up and leave; they were there every step of the way to make sure we were comfortable with the system and maximizing its potential. Their commitment to customer care is something that truly sets them apart. The Upsides The upsides of using Mimecast are numerous. For us, it’s been a reliable shield against a variety of email threats like phishing attacks, malware, and spam. Knowing that our data and communications are protected gives us peace of mind. Additionally, the value for money is outstanding—considering the high level of protection, the return on investment has been significant. Review collected by and hosted on G2.com. What do you dislike about Mimecast Advanced Email Security? To be completely honest, after nearly two years of using Mimecast, we haven’t found anything that stands out as a negative. The platform has consistently delivered on its promises, and we’ve had a smooth experience from day one. If anything, the only challenge might be that some of the more advanced features take a little time to fully explore and utilize, but the support team is always readily available to assist with this. Overall, there hasn’t been anything we’ve found unhelpful—Mimecast has been a reliable and essential tool for our organization. Review collected by and hosted on G2.com. What problems is Mimecast Advanced Email Security solving and how is that benefiting you? Mimecast Advanced Email Security is solving several key challenges for us. First and foremost, it provides protection against phishing attacks, malware, and email-borne threats that could compromise our sensitive data. Before implementing Mimecast, we dealt with frequent spam and phishing attempts that posed significant security risks. Now, those threats are effectively filtered and blocked, giving us greater peace of mind. Another major benefit is email continuity. Mimecast ensures that even during outages, we have uninterrupted access to our email systems. This has been invaluable for our team, as it minimizes downtime and keeps us productive. Lastly, Mimecast's archiving capabilities have been a huge asset. We're able to store and retrieve email communications easily, ensuring compliance and allowing for seamless auditing when needed. Overall, Mimecast has improved our email security posture and helped us stay focused on our work without worrying about threats. Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: Seller invite ![Verified User in Insurance](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Insurance") AI Verified User in Insurance Mid-Market (51-1000 emp.) 9/16/2024 "Easy to Manage Advanced Email security" 4.5/5 What do you like best about Mimecast Advanced Email Security? Mimecast Advanced Email Security is a great tool to add a layer of protection to corporate email solution, it has lots features which cover many elements of an emails journey and contents giving our end users confidence when working with email. It is easy to implement and once set up requires little intervention from IT staff in the day to day management of email send and recieve functionality. Users are able to self assess held of flagged emails and decide whether they think they are safe or malicious based on Mimecasts recommendations. Mimecast Advanced Email Security integrated straight into our Microsoft365 tenancy with very little effort and the Outlook add in allows a further level of integration and convenience to the end user. Mimecast Support has improved vastly over the years we have been a customer, it is now a very quick and easy way of sorting out any issues that do arise. Review collected by and hosted on G2.com. What do you dislike about Mimecast Advanced Email Security? Mimecast Advanced Email Security can take some time to tailor the impact on end users to begin with. Time and effort is needed to construct the correct whitelists and exceptions, as well as adjusting the spam filters to avoid an excessive amount of email being incorrectly held. The only other drawback is the usability of the administration portal, features and their policies can be hard to find as there are quite a few different levels to each function. Review collected by and hosted on G2.com. What problems is Mimecast Advanced Email Security solving and how is that benefiting you? Since the introduction of Mimecast Advanced Email Security in our business we have seen a massive reduction in phishing and other malicious emails being delivered to users inboxes. On top of the reduction of risk associated with this, we have also seen our users become much more aware of suspicious emails thanks to the messaging they see from the Mimecast product. The IT team now spends a lot less time in the administation and 'checking' of emails coming into the business, it has enabled our users to be more self sufficient and confident in what they are responding to. Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerIncentivizedSource: Seller invite ![Verified User in Non-Profit Organization Management](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Non-Profit Organization Management") AN Verified User in Non-Profit Organization Management Mid-Market (51-1000 emp.) 9/12/2024 "Great Application but confusing polices config." 3.5/5 What do you like best about Mimecast Advanced Email Security? I have been using Mimecast advanced Email security for almost two years now and use it almost everyday. The Best feature I would say is its robust policies and variety of polcies which covers all the of threate coming from email. It has the best URL protection complemented by Sandboxing. The implementaion was also easy thanks to their support staffs and Integration with m365 was easy. Review collected by and hosted on G2.com. What do you dislike about Mimecast Advanced Email Security? One of the main frustrations with Mimecast Advanced Email Security is its not so perfect New Outlook addin. It requires continous loggin and it doesn't work as good as the old Outlook Plugin. The variety of policies also makes it difficult to track and configure new policies, making it confusing. This lack ease in policy configuration can slow down the process and require extra effort to manage effectively, having to contact Mimecast Support everytime but the support is always helpful which is a plus. Review collected by and hosted on G2.com. What problems is Mimecast Advanced Email Security solving and how is that benefiting you? Mimecast is benefiting us with anti spoofing, blocking spams, malwares and links basically helping our org and staff be sage in Outlook. Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerIncentivizedSource: Seller invite ## Questions about Mimecast Advanced Email Security? 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 Mimecast Advanced Email Security ](https://www.g2.com/products/mimecast-advanced-email-security/discussions/new) GU Guest User • Last activity about 1 year ago What is Mimecast Email Security with Targeted Threat Protection used for? 0 Upvotes 2 [ Join the conversation ](https://www.g2.com/discussions/what-is-mimecast-email-security-with-targeted-threat-protection-used-for) ![Allen S.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Allen S.") AS Allen Snook • Last activity about 1 year ago Has anyone implemented ingesting the Audit logs from Mimecast into Graylog? 1 Upvote 3 [ Join the conversation ](https://www.g2.com/discussions/has-anyone-implemented-ingesting-the-audit-logs-from-mimecast-into-graylog) [ View all Discussions ](https://www.g2.com/products/mimecast-advanced-email-security/discuss) ## Pricing Insights Averages based on real user reviews. ### Time to Implement 2 months ### Return on Investment 12 months ### Average Discount 9% [ View More Pricing Information ](https://www.g2.com/products/mimecast-advanced-email-security/pricing) Mimecast Advanced Email Security Comparisons ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/small_square/small_square_4e2b08dd17397bdc99a5658447cbc589/microsoft-microsoft-defender-for-office-365.jpg "Product Avatar Image") Microsoft Defender for... 4.5/5(299) [ Compare Now ](https://www.g2.com/compare/microsoft-microsoft-defender-for-office-365-vs-mimecast-advanced-email-security) ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/small_square/small_square_f9b90f9d8d4e2cbdf787403ec274b32f/proofpoint-core-email-protection.jpg "Product Avatar Image") Proofpoint Core Email... 4.6/5(601) [ Compare Now ](https://www.g2.com/compare/mimecast-advanced-email-security-vs-proofpoint-core-email-protection) ![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/mimecast-advanced-email-security-vs-spamtitan-email-security) ##### ##### Mimecast Advanced Email Security Features Administration Email Clients Role-Based Rules Security Anti-Malware/Anti-Spam Quarantine Anti-Phishing Protection Policy Enforcement Spam Filtering Functionality Anti-Spam Anti-Malware Anti-Phishing [ View More Features ](https://www.g2.com/products/mimecast-advanced-email-security/features) ## 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