Anti-Spam SMTP Proxy Server Alternatives

Apps similar to Anti-Spam SMTP Proxy Server include Mailwasher, which has a free version. Other options are Proxmox Mail Gateway, SpamAssassin, BitNinja Server Security and BoxTrapper (cPanel Tool). You can choose from more than 10 Anti-Spam Tools like Anti-Spam SMTP Proxy Server for Linux, self-hosting, the web, Windows and Mac.

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Alternatives
Anti-Spam SMTP Proxy Server alternatives page was last updated

Alternatives list

  1.  1 like

    Spam Reader is a free anti-spam add-on for Microsoft Outlook. The software uses the most reliable approach to block junk emails - Bayesian algorithm based on statistical analysis, capable to be adjusted to user's needs and detect up to 98% of spam messages.

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Since

    • Since 2015

    Platforms

    • Windows
    • Microsoft Office Outlook
    Good alternative?
     
  2. Anti-spam gateway blocks more than 99% of spam with less than one in 1 million false positives and real-time automatic updates.

    Cost / License

    • Paid
    • Proprietary

    Application type

    Since

    • Since 2015

    Platforms

    • Windows
    Good alternative?
     
  3. EuropeanMX icon
     1 like

    EuropeanMX blocks incoming spam and virus emails before they are reaching your network. With our outgoing filter you can secure your server's reputation. And last but not least we are offering encrypted cloud storage to archive all your emails.

    Cost / License

    • Paid
    • Proprietary

    Application type

    Since

    • Since 2020

    Platforms

    • Online
    • Software as a Service (SaaS)
    Good alternative?
     
  4. The oikik hosted antispam system is divided into multiple filtering layer that a message passes through prior to being delivered to your inbox. If a message successfully passes through every stage of filters, it gets placed into a delivery queue, and is sent along to your mail...

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Since

    • Since 2019

    Platforms

    • Software as a Service (SaaS)
    Good alternative?
     
  5. Altospam icon
     1 like

    ALTOSPAM is an integrated SaaS software protecting your email from spams, viruses, scams and phishing. It allows companies owning at least one domain name to secure its email servers. ALTOSPAM combines 16 anti-spams technologies, 6 anti-viruses as well as other security services...

    Cost / License

    • Paid
    • Proprietary

    Application type

    Since

    • Since 2018

    Platforms

    • Online
    • Self-Hosted
    Good alternative?
     
  6. I’m personally getting a lot of Junk emails, one of the reasons is having a few LLC companies. A lot of other companies are trying to fix some issues (that don’t exist) or offer some services (that I don’t need).

    Cost / License

    • Free
    • Proprietary

    Application type

    Since

    • Since 2025

    Platforms

    • Mac
    • Apple Mail
    Good alternative?
     
  7. Klar icon
     Like

    Klar is an AI spam filter for Apple Mail that runs entirely on your Mac. A multilingual model classifies every message on device, in 100+ languages, and moves spam to junk.

    Cost / License

    Application type

    Since

    • New

    Platforms

    • Mac
    Good alternative?
     
  8. This program helps you block spam and worms before they reach your mailbox.

    Cost / License

    • Free
    • Proprietary

    Application type

    Since

    • Since 2011

    Platforms

    • Windows
    Good alternative?
     
  9.  Like

    Postgrey is a Postfix policy server implementing greylisting developed by David Schweikert.

    Cost / License

    • Free
    • Open Source

    Since

    • Since 2015

    Platforms

    • Linux
    • Self-Hosted
    Good alternative?
     
  10. A Linux based email gateway that filters email for viruses, spam, malware, phishing, and other threats. Works with any email server and any email provider such as Office 365.

    Cost / License

    • Paid
    • Proprietary

    Application type

    Since

    • Since 2025

    Platforms

    • Linux
    • Online
    • Self-Hosted
    • Software as a Service (SaaS)
    Good alternative?
     
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