What enterprise-grade security features are included in all 138 Enterprise Email plans?

All 138 Enterprise Email plans include SPF, DKIM, and DMARC authentication to verify email origin and prevent domain spoofing. The service also identifies spoofed emails and alerts users to unknown senders, helping reduce phishing risks. These protections are applied at the server level and require no manual configuration. The platform supports multi-device access via web, mobile, and standard protocol clients, and is operated directly by Shenzhen 138 Computer Technology Co., Ltd. with infrastructure designed to meet enterprise communication needs. Customers must verify domain ownership during setup and ensure third-party email clients are configured for TLS encryption. Advanced features such as email archiving, legal hold, or audit trail exports are not included.