Best Free Email Security Software of 2025

Email Shield is a cloud-based security add-in that protects email accounts. It helps businesses in a variety of industries, including banking, fintech and eCommerce. It verifies and tracks trusted contacts, allowing users to expose potentially dangerous emails and ensuring financial transactions are safe. Email Shield allows accounts payable agents (AP) to scan emails, AP recipients, and attachments, and then approve, escalate, reject, or accept payment and request account changes. The system modifies the personal information in an active message, including the subject, body and sender. This protects against wire fraud, vendor fraud, and wire fraud.

DMARCOFF protects your brand against phishing and spoofing. Receive instant alerts to suspicious activity and take immediate action. DMARCOFF helps you to: - Monitor the DMARC status - Make sure that your email domain has been properly protected - Identify malicious email sent from your domain - Receive a weekly DMARC Report that includes the maximum visibility of sending history for your domain - Visualize reports in an easy-to-use way - Receive notifications of any issues when and how you want.

ProxiedMail, a proxy email service, aims to change email flow in order to make it smarter and safer. Our goal is to separate emails and email clients, so that everyone can achieve greater freedom and privacy when moving from one email service to another in just a few clicks. For example, moving from Gmail into ProtonMail. ProxiedMail allows you to create unlimited email addresses and send the letters directly to your final email. You can: Protect yourself from spam - Don't leave your private data anywhere you can avoid them Create proxy emails using your domain - Send messages using your proxy email We also provide APIs and webhooks to receive emails. This will make software testing easier, and connects the system. They don't offer any APIs but do send emails. - Zapier integration