Suggestions appear as you type. Use the up and down arrows to choose one and Enter to open it.

This page's audience our own tag's counts — open to see them
–Visits
–Page views
–Clicks to vendors
–Time on page
–Reading now
Clicks to vendors, by tool
  • –
Top countries
  • –
Devices
  • –

– · visits, page views and clicks counted by our own tag, which counts more than our checked analytics; every figure rounded down · how we count

Scrollout F1 review

Free#28 of 34 in Email Security Gateways

A free self-hosted gateway with broad filtering and mail-authentication controls.

6.5/10Editor score
Scrollout F16.5 Visit Scrollout F1

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Scrollout F1 is a free, self-hosted email security gateway for organizations that operate their own mail servers. It filters incoming and outgoing mail traffic with anti-spam and antivirus protection, per-domain quarantine, spam scoring, authentication checks, malicious-content controls, and routing features. Linux and Windows administrators can deploy it as a virtual or bare-metal gateway alongside Microsoft Exchange, Lotus Domino, Postfix, Exim, or Qmail.

Its security coverage is broad for a free gateway. DKIM verification and signing, SPF verification with SRS forwarding support, and DMARC policy support address key email-authentication workflows. Active Directory and LDAP recipient verification can help validate recipients, while controls for executable files, malicious content, and scripts add another filtering layer. Encrypted connections to mail servers, fallback delivery to alternative mail servers, and outbound IP pool assignment by sender domain extend the product beyond basic spam filtering. These features make it suitable for teams that want mail-flow controls in front of an existing server estate.

The main trade-off is its deployment focus. Scrollout F1 is designed as a gateway managed by administrators, so it fits organizations with existing mail infrastructure rather than teams seeking a hosted mailbox-security service. Its listed ecosystem centers on traditional mail platforms, and organizations built around Microsoft 365 or Google Workspace should choose a product with explicitly documented support for those environments. Teams comfortable operating a Linux or Windows gateway and needing free authentication, quarantine, filtering, and routing controls should consider Scrollout F1; teams wanting a managed cloud service or broader modern collaboration-platform coverage should look elsewhere.

Scrollout F1 pros and cons

  • Where it wins
    • Free anti-spam, antivirus, quarantine, and malicious-content protection
    • DKIM, SPF, SRS, DMARC, and recipient verification support
    • Works with Exchange, Domino, Postfix, Exim, and Qmail
  • Where it doesn't
    • Requires administrator-managed Linux or Windows deployment
    • Focused on existing mail-server environments
    • Free-only pricing offers no tiered feature choices

Scrollout F1 fact sheet, pricing and score →

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Last updated · How we research and update