Inbound & Outbound Anti-Spam Shield
Protect Inboxes & Preserve Mail IP Reputation
Self-learning spam intelligence filters incoming malicious attachments and monitors outbound traffic to prevent server IP blacklisting.
Inbound Email Filtering
Scans all incoming emails before they reach your mail server. Quarantines phishing links, malware payloads, and spoofed CEO fraud messages.
- Zero configuration required (MX record redirection)
- Web-based quarantine log & release dashboard
Outbound Sender Protection
If an employee email account password is compromised by password-stealing malware, our filter blocks the spam outbreak instantly.
- Prevents server IP blacklist on Spamhaus/Barracuda
- Guarantees 100% deliverability for legitimate business emails
Enterprise Deliverability & Authentication Matrix
Automated calibration of modern cryptographic email authentication protocols.
| Protocol | Hostinov Implementation | Protection Value |
|---|---|---|
| SPF (Sender Policy Framework) | Auto-configured TXT record | Prevents unauthorized servers from spoofing your sender domain |
| DKIM (2048-bit Digital Keys) | Cryptographic signature per message | Proves email content was not tampered with in transit |
| DMARC Policy Enforcement | Strict alignment reporting | Instructs Gmail & Outlook to reject fraudulent impersonations |
Included by Default in All Hostinov Email Plans
Frequently Asked Questions
Email Anti-Spam Protection FAQ
Learn about SPF/DKIM/DMARC records, outbound filters, and sandbox quarantine.
If a compromised device or malware script on your network attempts to blast bulk spam through your SMTP credentials, our outbound filter catches the anomaly in real-time and blocks the rogue queue before major RBL databases (Spamhaus, Barracuda) can penalize your domain IP.