Sophos Central DMARC Manager Add-on 20,000+ Users

When email volume and user count rise, domain impersonation becomes harder to ignore. Sophos Central DMARC Manager Add-on for Email Advanced gives large organizations with 20,000+ users a structured way to manage DMARC policy and strengthen email authentication across the business. This add-on is built for teams that need more than basic filtering. It helps align sending sources with approved domain policy, reducing the chance that unauthorized systems can send mail that appears legitimate. For security and infrastructure leaders, that means better protection for brand trust, fewer spoofing opportunities, and clearer governance over how email identity is handled at scale. The 59-month term is a practical advantage for enterprises planning around long refresh cycles, budget cycles, and security program milestones. It reduces the administrative burden of frequent renewals while keeping DMARC controls in place for the long haul. For organizations with broad user populations and high exposure to phishing, that stability is part of the value.