# Wixtu

> Wixtu is a Microsoft 365 security consultancy led by Gorka Silva, a Microsoft-certified security architect (SC-100, SC-200, SC-300, SC-400) with 5+ years specialized in Microsoft Security. Wixtu helps small and mid-sized companies secure Microsoft 365 and Azure, and offers a free, live email security checker.

Wixtu LLC is registered in Cheyenne, Wyoming (USA) and is available to clients in the United States, Spain and the rest of Europe, in English and Spanish.

## Services

- Microsoft Defender for Office 365: anti-phishing, anti-malware and impersonation protection, policy configuration and automated response.
- Microsoft Sentinel: SIEM/SOAR deployment and threat detection.
- Microsoft Purview: data loss prevention (DLP), information protection and regulatory compliance.
- Microsoft Entra ID: identity and access management, Conditional Access, MFA, privileged access, Zero Trust architecture.
- Microsoft 365 and Azure security assessments: posture review of identity, data protection and threat detection.
- Email authentication: SPF, DKIM and DMARC design and safe rollout (monitoring first, then enforcement).

## Free email security checker

- [Email security checker](https://www.wixtu.com/scan): enter a domain to get a live A-F grade and a full technical report. It checks the SPF record and its include tree (10 DNS-lookup and 2 void-lookup limits, loops, duplicates), DMARC policy, percentage and external report authorization, DKIM keys (common selectors including Microsoft 365 selector1/selector2, key size, testing mode), MX records, IP blacklists (lists verified live; shared provider servers excluded) and MTA-STS, TLS-RPT and BIMI.
- Shareable report URL format: https://www.wixtu.com/scan?domain=example.com

## Contact

- Email: gorka.silva@wixtu.com
- LinkedIn: https://www.linkedin.com/in/gorkasilva/
- Website: https://www.wixtu.com