Forward Email

Overview

Forward Email was founded in 2016 and is headquartered in the United States. It is a fully open-source email forwarding service. Its source code is publicly available on GitHub under the MIT license — anyone can self-host or use the official free hosted service. Forward Email's core philosophy is providing privacy-first, zero-ads, zero-tracking email forwarding.

Forward Email's flagship product is "custom domain email forwarding" — forwarding emails sent to your custom domain's email addresses to your real mailbox (e.g., Gmail, Outlook, ProtonMail). This lets you use your own domain as your email suffix without running a mail server or paying expensive email hosting fees. Forward Email is completely free, sustained through community donations (GitHub Sponsors) and sponsor support.

Key Strengths

• Fully Open Source and Free: MIT-licensed code on GitHub — anyone can review, submit PRs, or self-host. No hidden fees, no feature locking. For frontend developers, this is the most transparent email forwarding solution available.
• Privacy-First Design: Zero ads, zero tracking, no IP address storage, no email content logging. Full TLS encryption for all messages in transit. Forward Email's privacy policy explicitly states it does not sell or share data with third parties.
• Custom Domain Support: Bind any number of custom domains and create unlimited email aliases (e.g., [email protected], [email protected]). All forwarding rules managed through the web panel or API. Paired with domain registration services, set up a complete custom-domain email system in minutes.
• API and SMTP Relay: RESTful API for creating and managing forwarding rules, viewing forwarding status. SMTP relay enables sending emails from custom domains (requires SPF/DKIM/DMARC configuration). Clean API design suitable for backend integration automation.
• Robust Anti-Spam: Built-in SPF, DKIM, and DMARC verification — automatically rejects unauthenticated emails. Supports greylisting, rate limiting, and reverse DNS checks. Default blocking of known spam sources.

Product Ecosystem

Email Forwarding

Forward Email's core capability: forward emails sent to [email protected] to specified real mailboxes (configurable multiple recipients). Supports catch-all forwarding (route all domain emails to one inbox). Full TLS encryption throughout the forwarding process.

SMTP Relay

Beyond receiving forwarded emails, Forward Email supports sending emails through custom domains. After configuring SPF, DKIM, and DMARC records, you can send emails as [email protected] via SMTP relay. Supports standard SMTP protocol with TLS encryption.

RESTful API

Forward Email provides a RESTful API for:

• Managing domains and forwarding rules
• Viewing forwarding status and logs
• Managing SMTP relay credentials
• Configuring SPF/DKIM/DMARC settings

Privacy Protection Tools

Built-in email privacy enhancements: automatic tracking pixel removal, optional remote image blocking, and email header anonymization. These features help users maintain privacy control during the forwarding process.

Limitations

• Forwarding Only, No Full Mailbox: Forward Email does not provide email storage, webmail client, calendar, contacts, or other full-featured email capabilities. It only forwards from one address to another. For a complete mailbox experience, consider business email services.
• DNS Configuration Required: Custom domain setup requires configuring MX, SPF, DKIM, and DMARC DNS records. While Forward Email provides detailed guidance, users without DNS experience may find it challenging. See email DNS configuration guide for help.
• Free Tier Fair Use Limits: The free tier has reasonable limits on domain count and daily forwarding volume (check official policy for specifics). High-volume users should sponsor via GitHub Sponsors or self-host.
• Technical User Focus: Product design and documentation target developers and technically savvy users. Non-technical users seeking simple email solutions may prefer ImprovMX with its more user-friendly interface.
• Email Sending Limits: SMTP relay is functional but has volume limits — not suitable for bulk marketing email campaigns. For high-volume sending, use SendGrid or Mailgun.

Use Cases

• Custom Domain Email Reception (Rating ★★★★★): Forward [email protected] to Gmail or Outlook — free and privacy-friendly. The most common use case.
• Developer Email Infrastructure (Rating ★★★★☆): Open-source, self-hostable, API-programmable — ideal for technical teams building self-contained email systems. See self-hosted email solutions.
• Personal Brand Email (Rating ★★★★☆): Custom domain email for personal websites and blogs — Forward Email is the zero-cost ideal solution.
• Privacy-Conscious Users (Rating ★★★★★): Zero ads, zero tracking, zero data collection — fully aligned with privacy-first email requirements.
• Enterprise Complete Mailbox (Rating ★☆☆☆☆): Lacks storage, calendar, and collaboration features. Teams should evaluate enterprise email services.

Pricing

Forward Email's core email forwarding service is completely free, sustained through community sponsorship.

FAQ

• Will Forward Email remain free forever? Forward Email has been operating for years, sustained through GitHub Sponsors and community donations. The code is fully open-source — even if the official service stops, users can self-host. As a long-term strategy, monitor community activity and maintenance status. See open-source email forwarding deep dive.
• How is Forward Email different from ImprovMX? Forward Email is fully open-source and free, with stricter privacy protections (zero ads, zero tracking) — suited for technical users. ImprovMX offers a friendlier UI with 25 free domains, but is not open-source. See email forwarding service comparison for details.
• How to configure Forward Email custom domain? After adding your domain on Forward Email's website, configure MX records (pointing to Forward Email's mail servers), SPF records (authorizing Forward Email to send), DKIM records (email signing verification), and DMARC records (email authentication policy) in your DNS management panel. See email DNS configuration guide for instructions.
• Does Forward Email support attachments? Yes. Forward Email preserves all email attachments during forwarding. Attachment size limits depend on the source mail server's restrictions — Forward Email itself does not set attachment size limits. For attachment delivery and email quality, see email deliverability optimization. For attachment delivery and email quality, see email deliverability optimization.
• Is Forward Email suitable for businesses? As an email forwarding solution, Forward Email is ideal for individual developers, small teams, and personal users needing custom domain email. Businesses requiring full email collaboration (storage, calendar, contacts, team sharing) should evaluate Google Workspace or Microsoft 365.