SpamTitan

Set up your mail defenses in hours, not weeks. With SpamTitan, you connect Microsoft 365 by updating MX records, creating the inbound and outbound connectors, and syncing users from Azure AD. Start in monitor-only mode to verify flow without interrupting delivery. Apply the starter policies, then tailor thresholds by group. Give executives stricter impersonation controls and finance a tighter hold on payment-themed traffic. Enable quarantine digests so staff can review and release safe items without opening a ticket. Use allow and block lists sparingly; prefer domain authentication checks (SPF, DKIM, DMARC) to keep exceptions manageable.

As messages arrive, SpamTitan screens them through layered checks. Reputation and content analysis trims noise, link defense rewrites URLs and checks them at click time, and file analysis detonates risky attachments in an isolated sandbox. Identity tricks like display-name spoofing or lookalike domains are flagged, and you can auto-tag suspicious mail with a warning banner. For outbound flow, enable data loss checks for patterns like card numbers and enforce TLS for partners who require it. Tune policies per department, schedule rules to relax during known campaigns, and lock down third-party senders by verifying their SPF or using distinct mail paths.

When something slips through or a user reports a suspect, move fast with a repeatable playbook. Search across recent mail for similar subjects, senders, hashes, or URLs. Bulk quarantine or delete matching items from user mailboxes if integration allows, then add a lightweight rule that blocks the specific IOC without creating broad collateral damage. Review the sandbox trace, URL verdicts, and header authentication to document the root cause. Export event data to your SIEM via API or syslog to correlate with endpoint alerts, and set notifications so your team is paged on spikes in impersonation or malware detections.

Keep operations smooth with a weekly tune-up. Measure false positive and miss rates, sample borderline items, and adjust thresholds a notch at a time. Use reports to brief leaders on top targeted users, attack themes, and partner domains that fail authentication. Automate user onboarding by syncing groups so new hires inherit the right rules from day one. Add exceptions for trusted services only after tracing their auth records. Test disaster recovery by simulating an MX outage and confirming queued delivery. Finally, review your policy set quarterly, retire ad hoc blocks, and consolidate rules so the system stays predictable and easy to audit.