# Best Microsoft Defender for Office 365 Alternatives 2026 | Capterra > Looking for alternatives to Microsoft Defender for Office 365? Find out how Microsoft Defender for Office 365 stacks up against its competitors with real user reviews, pricing information, and what features they offer. Source: https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/alternatives --- # Alternatives to Microsoft Defender for Office 365 [4.6 (240)](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/reviews/) Write a Review! [View Profile](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/) Tabset anchor ## Top Microsoft Defender for Office 365 Alternatives Microsoft Defender for Office 365 * * * Starting from: Not provided by vendor Pricing Model: Per Feature * * * Overall Rating: [4.6 (240)](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/reviews/) Ease of Use 4.5 Customer Service 4.3 Features 4.5 Value for Money 4.5 * * * Starting from: Not provided by vendor Pricing Model: Per User * * * Overall Rating: [4.9 (338)](https://www.capterra.com/p/233248/Hoxhunt/reviews/) Ease of Use 4.9 Customer Service 4.8 Features 4.8 Value for Money 4.8 * * * Starting from: $6/Per Month Pricing Model: Flat Rate * * * Overall Rating: [5.0 (20)](https://www.capterra.com/p/218859/Trustifi/#reviews) Ease of Use 4.8 Customer Service 4.9 Features 4.8 Value for Money 4.9 * * * Starting from: £5/Per Year Pricing Model: Flat Rate * * * Overall Rating: [4.9 (50)](https://www.capterra.com/p/206740/Libraesva-Email-Security/reviews/) Ease of Use 4.8 Customer Service 4.9 Features 4.8 Value for Money 4.9 Tabset anchor All Microsoft Defender for Office 365 Alternatives At a Glance Top Alternatives for Microsoft Defender for Office 365 - [Hoxhunt](#product_c2648925-4d3c-408e-8f0e-6680f124ee47) - [Trustifi](#product_a19b26d0-4b94-4697-93da-d380d46f2ead) - [Libraesva Email Security](#product_487496ab-7a49-42d8-881d-8c982ba694e4) - [Heimdal Email Security](#product_d972a14f-7cdd-4a66-bfc7-8c176ab227af) - [SpamTitan](#product_7a0166f3-b688-4afc-981e-a81600ac2d40) Tabset anchor by Heimdal Security [5.0 (1)](https://www.capterra.com/p/250406/Heimdal-Email-Security/#reviews) A versatile email protection solution that combines Office 365 support with proprietary threat prevention in the cloud and on-premise. [Learn more about Heimdal Email Security](https://www.capterra.com/p/250406/Heimdal-Email-Security/) Compare Tabset anchor ## [SpamTitan](https://www.capterra.com/p/168436/SpamTitan/) by TitanHQ [4.6 (563)](https://www.capterra.com/p/168436/SpamTitan/reviews/) SpamTitan is a cloud based Anti Spam email filter. It is an easy to use, effective, multi-award winning Anti-Spam, malware blocking and [Learn more about SpamTitan](https://www.capterra.com/p/168436/SpamTitan/) Compare Tabset anchor ## [Suped](https://www.capterra.com/p/10039796/Suped/) by Suped [5.0 (21)](https://www.capterra.com/p/10039796/Suped/#reviews) DMARC tool that helps businesses fix email deliverability issues flatten SPF, monitor blocklist & protect the system against spoofing. [Learn more about Suped](https://www.capterra.com/p/10039796/Suped/) Compare Tabset anchor ## [Proton Mail](https://www.capterra.com/p/201276/ProtonMail/) by Proton Technologies [4.5 (122)](https://www.capterra.com/p/201276/ProtonMail/reviews/) ProtonMail is the world's largest secure email provider. We protect the data and communications of millions of organizations. [Learn more about Proton Mail](https://www.capterra.com/p/201276/ProtonMail/) Compare Tabset anchor ## [ESET Endpoint Security](https://www.capterra.com/p/151915/ESET-Endpoint-Security/) by ESET [4.7 (1169)](https://www.capterra.com/p/151915/ESET-Endpoint-Security/reviews/) In the computer security category, ESET Endpoint Security offers top-tier cybersecurity for organizations with 250+ employees. [Learn more about ESET Endpoint Security](https://www.capterra.com/p/151915/ESET-Endpoint-Security/) Compare Tabset anchor ## [Topsec Cloud Solutions](https://www.capterra.com/p/145598/Topsec-Email-Security/) by Topsec Cloud Solutions [4.9 (69)](https://www.capterra.com/p/145598/Topsec-Email-Security/reviews/) Topsec Email Security eliminates spam, viruses, malware, ransomware, phishing, and quarantines undesirable and/or illicit content. [Learn more about Topsec Cloud Solutions](https://www.capterra.com/p/145598/Topsec-Email-Security/) Compare Tabset anchor ## [Graphus](https://www.capterra.com/p/219920/Graphus/) by Kaseya [4.3 (27)](https://www.capterra.com/p/219920/Graphus/reviews/) Graphus is an AI-powered cloud email security and anti- phishing solution that provides 3 layers of defense for MS365 & GSuite users. [Learn more about Graphus](https://www.capterra.com/p/219920/Graphus/) Compare Tabset anchor ## [Barracuda Impersonation Protection](https://www.capterra.com/p/178588/Barracuda-Sentinel/) by Barracuda Networks [4.6 (11)](https://www.capterra.com/p/178588/Barracuda-Sentinel/reviews/) A.I.-Based protection from spear phishing and email fraud. [Learn more about Barracuda Impersonation Protection](https://www.capterra.com/p/178588/Barracuda-Sentinel/) Compare Tabset anchor ## [Abnormal AI](https://www.capterra.com/p/230392/Abnormal-Security/) by Abnormal Security [5.0 (2)](https://www.capterra.com/p/230392/Abnormal-Security/#reviews) The cloud-native email security company that protects 100% of employees at 5%, and growing, of the Fortune 1000. [Learn more about Abnormal AI](https://www.capterra.com/p/230392/Abnormal-Security/) Compare Tabset anchor ## [Barracuda Email Protection](https://www.capterra.com/p/175506/Barracuda-Essentials/) by Barracuda Networks [4.2 (11)](https://www.capterra.com/p/175506/Barracuda-Essentials/reviews/) Barracuda Email Protection is email security software that protects against phishing, impersonation, malware, and other threats. [Learn more about Barracuda Email Protection](https://www.capterra.com/p/175506/Barracuda-Essentials/) Compare Tabset anchor ## [Proofpoint Email Protection](https://www.capterra.com/p/175873/Proofpoint-Email-Protection/) by Proofpoint [4.2 (45)](https://www.capterra.com/p/175873/Proofpoint-Email-Protection/reviews/) Email security management solution that helps detect & block threats through various tools like firewalls, SCSS & more. [Learn more about Proofpoint Email Protection](https://www.capterra.com/p/175873/Proofpoint-Email-Protection/) Compare Tabset anchor ## [MimeCast Email Security](https://www.capterra.com/p/119826/MimeCast-Email-Security/) by MimeCast [4.3 (80)](https://www.capterra.com/p/119826/MimeCast-Email-Security/reviews/) Protect emails by mitigating risk and utilizing email encryption and threat protection [Learn more about MimeCast Email Security](https://www.capterra.com/p/119826/MimeCast-Email-Security/) Compare Software Found In - [Email Security Software](https://www.capterra.com/email-security-software/) - [Anti-spam Software](https://www.capterra.com/anti-spam-software/)