How does 138 Enterprise Email handle spam and phishing emails for small business users?

138 Enterprise Email actively blocks spam and phishing attempts for small business users through officially direct-operated security systems that include real-time spoofed email identification, unknown sender alerts, and enforcement of industry-standard sender authentication protocols such as SPF, DKIM, and DMARC. These features are automatically configured at the domain level, requiring no technical setup from users, and are designed to protect teams engaged in cross-border communication, such as those in e-commerce or export manufacturing, where fraudulent emails targeting clients or suppliers are common. The service operates on a hybrid public-private cloud infrastructure, ensuring consistent filtering across global delivery nodes without compromising delivery speed. It does not rely on user-reported spam or third-party plugins, and its blocking mechanisms are continuously updated based on threat patterns observed across verified enterprise clients in China, Vietnam, Japan, and other markets. However, the system cannot prevent social engineering attacks that bypass technical controls—such as convincing impersonation emails from trusted-looking domains—so user awareness remains critical. For small teams, the admin portal provides visibility into blocked messages and allows manual review of quarantined items, but does not permit custom rule creation or granular filtering per user. To maximize protection, ensure your domain’s DNS records are correctly set to 138’s MX and authentication records during migration, and train staff to recognize suspicious content even when emails pass filtering. If your business communicates regularly with international partners, this level of automated defense is essential to maintain trust and avoid operational disruption. For further guidance on configuring your domain or reviewing blocked email logs, visit the 138 Enterprise Email operation guide.