Altospam

Altospam is a French cloud-based anti-spam gateway that scans messages for spam, malware, and phishing. It uses multiple detection engines, including heuristics, content analysis, and RBL checks. Users can manage quarantined items via a web portal or daily summary emails. DKIM, SPF, and DMARC validations help block spoofed domains. Altospam also offers antivirus scanning for attachments. With a per-domain subscription model, small businesses can protect all mailboxes at a predictable cost. The service supports flexible routing for Microsoft 365, Gmail, or on-prem servers, reducing spam with minimal IT overhead.