# Top 10 Sendio Alternatives & Competitors **Average Rating:** 4.0/5 **Total Number of Reviews:** 1 Research alternative solutions to Sendio on G2, with real user reviews on competing tools. Secure Email Gateway Software is a widely used technology, and many people are seeking sophisticated, time saving software solutions with on-prem deployment and advanced threat intelligence/protection. Other important factors to consider when researching alternatives to Sendio include ease of use and reliability. The best overall Sendio alternative is Proofpoint Core Email Protection. Other similar apps like Sendio are Paubox, Virtru Email Encryption, Mimecast Advanced Email Security, and SpamTitan Email Security. Sendio alternatives can be found in [Secure Email Gateway Software](https://www.g2.com/categories/secure-email-gateway) but may also be in [Email Encryption Software](https://www.g2.com/categories/email-encryption) or [Cloud Email Security Solutions](https://www.g2.com/categories/cloud-email-security). ## Best Paid & Free Alternatives to Sendio - [Proofpoint Core Email Protection](https://www.g2.com/products/proofpoint-core-email-protection/reviews) - [Paubox](https://www.g2.com/products/paubox/reviews) - [Virtru Email Encryption](https://www.g2.com/products/virtru-email-encryption/reviews) - [Mimecast Advanced Email Security](https://www.g2.com/products/mimecast-advanced-email-security/reviews) - [SpamTitan Email Security](https://www.g2.com/products/spamtitan-email-security/reviews) - [Kiteworks](https://www.g2.com/products/kiteworks/reviews) - [Cloudflare One (SASE)](https://www.g2.com/products/cloudflare-one-sase/reviews) - [Libraesva Email Security](https://www.g2.com/products/libraesva-email-security/reviews) - [NeoCertified Secure Email](https://www.g2.com/products/neocertified-secure-email/reviews) - [LuxSci](https://www.g2.com/products/luxsci/reviews) ## Top 10 Alternatives to Sendio Recently Reviewed By G2 Community Browse options below. Based on reviewer data, you can see how Sendio stacks up to the competition, check reviews from current & previous users in industries like Oil & Energy, and find the best product for your business. ### 1. [Proofpoint Core Email Protection](https://www.g2.com/products/proofpoint-core-email-protection/reviews) By Proofpoint **Average Rating:** 4.6/5 **Total Reviews:** 601 Proofpoint Core Email Protection stops malware and non-malware threats such as impostor email. Categories in common with Sendio: [Secure Email Gateway](https://www.g2.com/categories/secure-email-gateway) **Compare:** [Sendio vs Proofpoint Core Email Protection](https://www.g2.com/compare/proofpoint-core-email-protection-vs-sendio) **Compare Proofpoint Core Email Protection with other alternatives:** - [Proofpoint Core Email Protection vs Paubox](https://www.g2.com/compare/paubox-vs-proofpoint-core-email-protection) - [Proofpoint Core Email Protection vs Virtru Email Encryption](https://www.g2.com/compare/proofpoint-core-email-protection-vs-virtru-email-encryption) - [Proofpoint Core Email Protection vs Mimecast Advanced Email Security](https://www.g2.com/compare/mimecast-advanced-email-security-vs-proofpoint-core-email-protection) - [Proofpoint Core Email Protection vs SpamTitan Email Security](https://www.g2.com/compare/proofpoint-core-email-protection-vs-spamtitan-email-security) - [Proofpoint Core Email Protection vs Kiteworks](https://www.g2.com/compare/kiteworks-vs-proofpoint-core-email-protection) - [Proofpoint Core Email Protection vs Cloudflare One (SASE)](https://www.g2.com/compare/cloudflare-one-sase-vs-proofpoint-core-email-protection) - [Proofpoint Core Email Protection vs Libraesva Email Security](https://www.g2.com/compare/libraesva-email-security-vs-proofpoint-core-email-protection) - [Proofpoint Core Email Protection vs NeoCertified Secure Email](https://www.g2.com/compare/neocertified-secure-email-vs-proofpoint-core-email-protection) - [Proofpoint Core Email Protection vs LuxSci](https://www.g2.com/compare/luxsci-vs-proofpoint-core-email-protection) ### 2. [Paubox](https://www.g2.com/products/paubox/reviews) By Paubox **Average Rating:** 4.9/5 **Total Reviews:** 582 Paubox is an easy way to send and receive HIPAA compliant email. Categories in common with Sendio: [Secure Email Gateway](https://www.g2.com/categories/secure-email-gateway) **Compare:** [Sendio vs Paubox](https://www.g2.com/compare/paubox-vs-sendio) **Compare Paubox with other alternatives:** - [Paubox vs Proofpoint Core Email Protection](https://www.g2.com/compare/paubox-vs-proofpoint-core-email-protection) - [Paubox vs Virtru Email Encryption](https://www.g2.com/compare/paubox-vs-virtru-email-encryption) - [Paubox vs Mimecast Advanced Email Security](https://www.g2.com/compare/mimecast-advanced-email-security-vs-paubox) - [Paubox vs SpamTitan Email Security](https://www.g2.com/compare/paubox-vs-spamtitan-email-security) - [Paubox vs Kiteworks](https://www.g2.com/compare/kiteworks-vs-paubox) - [Paubox vs Cloudflare One (SASE)](https://www.g2.com/compare/cloudflare-one-sase-vs-paubox) - [Paubox vs Libraesva Email Security](https://www.g2.com/compare/libraesva-email-security-vs-paubox) - [Paubox vs NeoCertified Secure Email](https://www.g2.com/compare/neocertified-secure-email-vs-paubox) - [Paubox vs LuxSci](https://www.g2.com/compare/luxsci-vs-paubox) ### 3. [Virtru Email Encryption](https://www.g2.com/products/virtru-email-encryption/reviews) By Virtru **Average Rating:** 4.4/5 **Total Reviews:** 416 Virtru puts you in charge of how your digital information is shared. Combining control, convenience, and simplicity, Virtru makes it easy to keep your private communications private. Categories in common with Sendio: [Secure Email Gateway](https://www.g2.com/categories/secure-email-gateway) **Compare:** [Sendio vs Virtru Email Encryption](https://www.g2.com/compare/sendio-vs-virtru-email-encryption) **Compare Virtru Email Encryption with other alternatives:** - [Virtru Email Encryption vs Proofpoint Core Email Protection](https://www.g2.com/compare/proofpoint-core-email-protection-vs-virtru-email-encryption) - [Virtru Email Encryption vs Paubox](https://www.g2.com/compare/paubox-vs-virtru-email-encryption) - [Virtru Email Encryption vs Mimecast Advanced Email Security](https://www.g2.com/compare/mimecast-advanced-email-security-vs-virtru-email-encryption) - [Virtru Email Encryption vs SpamTitan Email Security](https://www.g2.com/compare/spamtitan-email-security-vs-virtru-email-encryption) - [Virtru Email Encryption vs Kiteworks](https://www.g2.com/compare/kiteworks-vs-virtru-email-encryption) - [Virtru Email Encryption vs Cloudflare One (SASE)](https://www.g2.com/compare/cloudflare-one-sase-vs-virtru-email-encryption) - [Virtru Email Encryption vs Libraesva Email Security](https://www.g2.com/compare/libraesva-email-security-vs-virtru-email-encryption) - [Virtru Email Encryption vs NeoCertified Secure Email](https://www.g2.com/compare/neocertified-secure-email-vs-virtru-email-encryption) - [Virtru Email Encryption vs LuxSci](https://www.g2.com/compare/luxsci-vs-virtru-email-encryption) ### 4. [Mimecast Advanced Email Security](https://www.g2.com/products/mimecast-advanced-email-security/reviews) By Mimecast **Average Rating:** 4.4/5 **Total Reviews:** 320 Mimecast Email Security with Targeted Threat Protection solution that offers comprehensive, multi-layered email security and content controls. Categories in common with Sendio: [Secure Email Gateway](https://www.g2.com/categories/secure-email-gateway) **Compare:** [Sendio vs Mimecast Advanced Email Security](https://www.g2.com/compare/mimecast-advanced-email-security-vs-sendio) **Compare Mimecast Advanced Email Security with other alternatives:** - [Mimecast Advanced Email Security vs Proofpoint Core Email Protection](https://www.g2.com/compare/mimecast-advanced-email-security-vs-proofpoint-core-email-protection) - [Mimecast Advanced Email Security vs Paubox](https://www.g2.com/compare/mimecast-advanced-email-security-vs-paubox) - [Mimecast Advanced Email Security vs Virtru Email Encryption](https://www.g2.com/compare/mimecast-advanced-email-security-vs-virtru-email-encryption) - [Mimecast Advanced Email Security vs SpamTitan Email Security](https://www.g2.com/compare/mimecast-advanced-email-security-vs-spamtitan-email-security) - [Mimecast Advanced Email Security vs Kiteworks](https://www.g2.com/compare/kiteworks-vs-mimecast-advanced-email-security) - [Mimecast Advanced Email Security vs Cloudflare One (SASE)](https://www.g2.com/compare/cloudflare-one-sase-vs-mimecast-advanced-email-security) - [Mimecast Advanced Email Security vs Libraesva Email Security](https://www.g2.com/compare/libraesva-email-security-vs-mimecast-advanced-email-security) - [Mimecast Advanced Email Security vs NeoCertified Secure Email](https://www.g2.com/compare/mimecast-advanced-email-security-vs-neocertified-secure-email) - [Mimecast Advanced Email Security vs LuxSci](https://www.g2.com/compare/luxsci-vs-mimecast-advanced-email-security) ### 5. [SpamTitan Email Security](https://www.g2.com/products/spamtitan-email-security/reviews) By CyberSentriq **Average Rating:** 4.5/5 **Total Reviews:** 199 Advanced yet easy to use Business Email Security Solution. Protects your business from malicious threats via email such as phishing, malware and spoofing. Double AV protection included. Office 365 Friendly. Categories in common with Sendio: [Secure Email Gateway](https://www.g2.com/categories/secure-email-gateway) **Compare:** [Sendio vs SpamTitan Email Security](https://www.g2.com/compare/sendio-vs-spamtitan-email-security) **Compare SpamTitan Email Security with other alternatives:** - [SpamTitan Email Security vs Proofpoint Core Email Protection](https://www.g2.com/compare/proofpoint-core-email-protection-vs-spamtitan-email-security) - [SpamTitan Email Security vs Paubox](https://www.g2.com/compare/paubox-vs-spamtitan-email-security) - [SpamTitan Email Security vs Virtru Email Encryption](https://www.g2.com/compare/spamtitan-email-security-vs-virtru-email-encryption) - [SpamTitan Email Security vs Mimecast Advanced Email Security](https://www.g2.com/compare/mimecast-advanced-email-security-vs-spamtitan-email-security) - [SpamTitan Email Security vs Kiteworks](https://www.g2.com/compare/kiteworks-vs-spamtitan-email-security) - [SpamTitan Email Security vs Cloudflare One (SASE)](https://www.g2.com/compare/cloudflare-one-sase-vs-spamtitan-email-security) - [SpamTitan Email Security vs Libraesva Email Security](https://www.g2.com/compare/libraesva-email-security-vs-spamtitan-email-security) - [SpamTitan Email Security vs NeoCertified Secure Email](https://www.g2.com/compare/neocertified-secure-email-vs-spamtitan-email-security) - [SpamTitan Email Security vs LuxSci](https://www.g2.com/compare/luxsci-vs-spamtitan-email-security) ### 6. [Kiteworks](https://www.g2.com/products/kiteworks/reviews) By Kiteworks **Average Rating:** 4.4/5 **Total Reviews:** 118 The Kiteworks platform prevents data breaches and compliance violations from 3rd party communications. With Kiteworks, CIOs and CISOs gain complete visibility, compliance and control over IP, PII, PHI, and other sensitive content across all 3rd party communication channels, including email, file sharing, mobile, enterprise apps, web portals, SFTP, and MFT. When users click the Kiteworks button, they know it’s the safe, secure way to share sensitive information with the outside world. With on-premise, private cloud, hybrid and FedRAMP deployment options, the Kiteworks platform provides the security and governance CISOs need to protect their organizations, mitigate risk, and adhere to rigorous compliance regulations such as NIST 800-171, HIPAA, SOX, GDPR, GLBA, FISMA, and others. Categories in common with Sendio: [Secure Email Gateway](https://www.g2.com/categories/secure-email-gateway) **Compare:** [Sendio vs Kiteworks](https://www.g2.com/compare/kiteworks-vs-sendio) **Compare Kiteworks with other alternatives:** - [Kiteworks vs Proofpoint Core Email Protection](https://www.g2.com/compare/kiteworks-vs-proofpoint-core-email-protection) - [Kiteworks vs Paubox](https://www.g2.com/compare/kiteworks-vs-paubox) - [Kiteworks vs Virtru Email Encryption](https://www.g2.com/compare/kiteworks-vs-virtru-email-encryption) - [Kiteworks vs Mimecast Advanced Email Security](https://www.g2.com/compare/kiteworks-vs-mimecast-advanced-email-security) - [Kiteworks vs SpamTitan Email Security](https://www.g2.com/compare/kiteworks-vs-spamtitan-email-security) - [Kiteworks vs Cloudflare One (SASE)](https://www.g2.com/compare/cloudflare-one-sase-vs-kiteworks) - [Kiteworks vs Libraesva Email Security](https://www.g2.com/compare/kiteworks-vs-libraesva-email-security) - [Kiteworks vs NeoCertified Secure Email](https://www.g2.com/compare/kiteworks-vs-neocertified-secure-email) - [Kiteworks vs LuxSci](https://www.g2.com/compare/kiteworks-vs-luxsci) ### 7. [Cloudflare One (SASE)](https://www.g2.com/products/cloudflare-one-sase/reviews) By Cloudflare, Inc. **Average Rating:** 4.6/5 **Total Reviews:** 104 Cloudflare Area 1 Security identifies and prevents advanced socially engineered attacks before they impact your enterprise. Categories in common with Sendio: [Secure Email Gateway](https://www.g2.com/categories/secure-email-gateway) **Compare:** [Sendio vs Cloudflare One (SASE)](https://www.g2.com/compare/cloudflare-one-sase-vs-sendio) **Compare Cloudflare One (SASE) with other alternatives:** - [Cloudflare One (SASE) vs Proofpoint Core Email Protection](https://www.g2.com/compare/cloudflare-one-sase-vs-proofpoint-core-email-protection) - [Cloudflare One (SASE) vs Paubox](https://www.g2.com/compare/cloudflare-one-sase-vs-paubox) - [Cloudflare One (SASE) vs Virtru Email Encryption](https://www.g2.com/compare/cloudflare-one-sase-vs-virtru-email-encryption) - [Cloudflare One (SASE) vs Mimecast Advanced Email Security](https://www.g2.com/compare/cloudflare-one-sase-vs-mimecast-advanced-email-security) - [Cloudflare One (SASE) vs SpamTitan Email Security](https://www.g2.com/compare/cloudflare-one-sase-vs-spamtitan-email-security) - [Cloudflare One (SASE) vs Kiteworks](https://www.g2.com/compare/cloudflare-one-sase-vs-kiteworks) - [Cloudflare One (SASE) vs Libraesva Email Security](https://www.g2.com/compare/cloudflare-one-sase-vs-libraesva-email-security) - [Cloudflare One (SASE) vs NeoCertified Secure Email](https://www.g2.com/compare/cloudflare-one-sase-vs-neocertified-secure-email) - [Cloudflare One (SASE) vs LuxSci](https://www.g2.com/compare/cloudflare-one-sase-vs-luxsci) ### 8. [Libraesva Email Security](https://www.g2.com/products/libraesva-email-security/reviews) By Libraesva **Average Rating:** 4.8/5 **Total Reviews:** 104 Libraesva secures email communications, eliminates email borne threats, preserves email data and provides an environment for people to communicate safely. Categories in common with Sendio: [Secure Email Gateway](https://www.g2.com/categories/secure-email-gateway) **Compare:** [Sendio vs Libraesva Email Security](https://www.g2.com/compare/libraesva-email-security-vs-sendio) **Compare Libraesva Email Security with other alternatives:** - [Libraesva Email Security vs Proofpoint Core Email Protection](https://www.g2.com/compare/libraesva-email-security-vs-proofpoint-core-email-protection) - [Libraesva Email Security vs Paubox](https://www.g2.com/compare/libraesva-email-security-vs-paubox) - [Libraesva Email Security vs Virtru Email Encryption](https://www.g2.com/compare/libraesva-email-security-vs-virtru-email-encryption) - [Libraesva Email Security vs Mimecast Advanced Email Security](https://www.g2.com/compare/libraesva-email-security-vs-mimecast-advanced-email-security) - [Libraesva Email Security vs SpamTitan Email Security](https://www.g2.com/compare/libraesva-email-security-vs-spamtitan-email-security) - [Libraesva Email Security vs Kiteworks](https://www.g2.com/compare/kiteworks-vs-libraesva-email-security) - [Libraesva Email Security vs Cloudflare One (SASE)](https://www.g2.com/compare/cloudflare-one-sase-vs-libraesva-email-security) - [Libraesva Email Security vs NeoCertified Secure Email](https://www.g2.com/compare/libraesva-email-security-vs-neocertified-secure-email) - [Libraesva Email Security vs LuxSci](https://www.g2.com/compare/libraesva-email-security-vs-luxsci) ### 9. [NeoCertified Secure Email](https://www.g2.com/products/neocertified-secure-email/reviews) By NeoCertified **Average Rating:** 4.8/5 **Total Reviews:** 101 NeoCertified is a solution that provides secure email encryption for businesses and organizations across all industries, including healthcare, finance, legal, non-profit and education. Categories in common with Sendio: [Secure Email Gateway](https://www.g2.com/categories/secure-email-gateway) **Compare:** [Sendio vs NeoCertified Secure Email](https://www.g2.com/compare/neocertified-secure-email-vs-sendio) **Compare NeoCertified Secure Email with other alternatives:** - [NeoCertified Secure Email vs Proofpoint Core Email Protection](https://www.g2.com/compare/neocertified-secure-email-vs-proofpoint-core-email-protection) - [NeoCertified Secure Email vs Paubox](https://www.g2.com/compare/neocertified-secure-email-vs-paubox) - [NeoCertified Secure Email vs Virtru Email Encryption](https://www.g2.com/compare/neocertified-secure-email-vs-virtru-email-encryption) - [NeoCertified Secure Email vs Mimecast Advanced Email Security](https://www.g2.com/compare/mimecast-advanced-email-security-vs-neocertified-secure-email) - [NeoCertified Secure Email vs SpamTitan Email Security](https://www.g2.com/compare/neocertified-secure-email-vs-spamtitan-email-security) - [NeoCertified Secure Email vs Kiteworks](https://www.g2.com/compare/kiteworks-vs-neocertified-secure-email) - [NeoCertified Secure Email vs Cloudflare One (SASE)](https://www.g2.com/compare/cloudflare-one-sase-vs-neocertified-secure-email) - [NeoCertified Secure Email vs Libraesva Email Security](https://www.g2.com/compare/libraesva-email-security-vs-neocertified-secure-email) - [NeoCertified Secure Email vs LuxSci](https://www.g2.com/compare/luxsci-vs-neocertified-secure-email) ### 10. [LuxSci](https://www.g2.com/products/luxsci/reviews) By LuxSci **Average Rating:** 4.7/5 **Total Reviews:** 83 LuxSci provides HIPAA-compliant email, secure email & web services. Categories in common with Sendio: [Secure Email Gateway](https://www.g2.com/categories/secure-email-gateway) **Compare:** [Sendio vs LuxSci](https://www.g2.com/compare/luxsci-vs-sendio) **Compare LuxSci with other alternatives:** - [LuxSci vs Proofpoint Core Email Protection](https://www.g2.com/compare/luxsci-vs-proofpoint-core-email-protection) - [LuxSci vs Paubox](https://www.g2.com/compare/luxsci-vs-paubox) - [LuxSci vs Virtru Email Encryption](https://www.g2.com/compare/luxsci-vs-virtru-email-encryption) - [LuxSci vs Mimecast Advanced Email Security](https://www.g2.com/compare/luxsci-vs-mimecast-advanced-email-security) - [LuxSci vs SpamTitan Email Security](https://www.g2.com/compare/luxsci-vs-spamtitan-email-security) - [LuxSci vs Kiteworks](https://www.g2.com/compare/kiteworks-vs-luxsci) - [LuxSci vs Cloudflare One (SASE)](https://www.g2.com/compare/cloudflare-one-sase-vs-luxsci) - [LuxSci vs Libraesva Email Security](https://www.g2.com/compare/libraesva-email-security-vs-luxsci) - [LuxSci vs NeoCertified Secure Email](https://www.g2.com/compare/luxsci-vs-neocertified-secure-email) ## Explore Articles - [Best Zero Trust Networking Software](https://www.g2.com/discussions/looking-for-the-best-zero-trust-networking-software-in-2025) - [What platform integrates scanning with patch management systems?](https://www.g2.com/discussions/what-platform-integrates-scanning-with-patch-management-systems) - [Best A/B Testing Platforms](https://www.g2.com/discussions/best-a-b-testing-software-or-platform) - [What is the best email marketing tool with good customer support?](https://www.g2.com/discussions/what-is-the-best-email-marketing-tool-with-good-customer-support) - [What is the most reliable platform for commercial property lease management?](https://www.g2.com/discussions/what-is-the-most-reliable-platform-for-commercial-property-lease-management) - [Best PRM software for remote teams](https://www.g2.com/discussions/best-prm-software-for-remote-teams) ## Spotlight Categories - [Environmental Health and Safety Software](https://www.g2.com/categories/environmental-health-and-safety) - [CMMS Software](https://www.g2.com/categories/cmms) - [Compensation Management Software](https://www.g2.com/categories/compensation-management)