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Zerospam review

#21 of 27 in Email Anti-Spam Software

A simple cloud gateway for businesses that want core email threat filtering.

6.2/10Editor score
Zerospam6.2 Visit Zerospam

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Zerospam is a cloud-based email security service from Genesi.IT S.r.l. for businesses that want domain mail filtered before messages reach recipients. It screens for spam, phishing, spoofing, viruses, malware, ransomware and trojans, then places suspicious messages in an administrator-managed quarantine. The service runs through a web interface and requires no software installation, making it a fit for small businesses seeking a straightforward cloud gateway rather than a broad mail-platform suite.

Deployment centers on MX-record activation: administrators change the domain’s MX records so incoming mail passes through Zerospam before delivery. The service applies machine-learning-based filters and provides quarantine management through an administration panel, where administrators can delete or approve messages. Professional support is available by email and phone. The main operational constraint is access control: quarantine management is administrator-only, so individual recipients do not manage held messages themselves.

Zerospam has three paid plans. SMART and TOP provide a professional antispam service, unlimited messages and no email archiving. PREMIUM keeps the professional antispam service and unlimited messages while adding email archiving. A 30-day trial is available. Businesses should choose Zerospam when they prioritize core filtering for common email threats, cloud deployment and a simple administrative workflow. It is less suitable for organizations that need recipient-level quarantine access, broader platform coverage, or archiving on an entry-level plan.

Zerospam pros and cons

  • Where it wins
    • Filters spam, phishing, spoofing, viruses, malware and ransomware
    • Uses machine-learning-based threat detection
    • Premium adds email archiving and all plans allow unlimited messages
  • Where it doesn't
    • Quarantine management is restricted to administrators
    • MX-record activation is required for deployment
    • SMART and TOP do not include email archiving

Zerospam fact sheet, pricing and score →

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