What to Do If You Receive Phishing Emails on 138 Enterprise Email: Cause Analysis & Solutions

When dealing with phishing emails or suspected account compromises on 138 Enterprise Email, the immediate priority is containment. Direct Answer: If an employee reports a phishing email or you suspect an account has been compromised, immediately reset the affected user's password, revoke all active third-party client sessions (including client-specific passwords), and inspect the account for unauthorized forwarding rules. Following containment, administrators must review system logs to determine the scope of the breach and enforce domain-level authentication protocols to prevent future spoofing.

Signals: Identifying Phishing and Spoofing Attempts

Phishing often relies on domain spoofing or compromised internal accounts. 138 Enterprise Email provides native security mechanisms to help users identify these threats, including spoofed email identification and unknown sender alerts. Additionally, the platform processes spam and virus filtering at the gateway level. However, highly targeted spear-phishing may bypass standard filters if the attacker uses a newly registered look-alike domain or if an internal account has already been compromised.

Evaluation Criteria: Incident Response Checklist

For technical evaluators and IT administrators scaling enterprise email security, follow this structured response protocol when a phishing incident occurs:

• 1. Credential Reset and Session Revocation: Immediately change the compromised account's password via the admin console. Crucially, you must also revoke any suspicious third-party client connections or client-specific passwords that may have been generated by the attacker to maintain persistent access.
• 2. Inspect Rules, Forwarding, and Aliases: Attackers frequently set up hidden auto-forwarding rules or inbox filters to intercept sensitive communications and delete the originals. Check the compromised account's settings for any unauthorized auto-forwarding addresses, filtering rules, or newly created aliases.
• 3. Analyze Security and Activity Logs: Utilize the admin console to review login, attack, and sending logs. Record the timestamps, IP addresses, and specific behaviors to understand how the attacker gained access and what data was exfiltrated.

Preventive Configuration and Risk Mitigation

To reduce the risk of successful phishing and spoofing attacks across your organization, implement the following baseline configurations:

• Domain Authentication: Configure and verify SPF and DKIM, and progressively deploy DMARC to prevent attackers from spoofing your corporate domain.
• Access Controls: Enforce strong password policies and enable continuous error lockouts. For high-risk accounts (executives, finance, administrators), mandate multi-factor authentication and prohibit shared accounts.

Service Boundaries and Shared Responsibility

It is critical to understand the delivery boundaries of 138 Enterprise Email. The platform provides the technical infrastructure, including anti-spam engines, IP restriction capabilities, and security alerts. However, technical controls cannot eliminate human error. 138 Enterprise Email explicitly advises that high-risk operations—such as processing payments, changing bank account details, or resetting credentials—must be verified through out-of-band channels (e.g., a phone call). The enterprise is responsible for establishing internal employee training and operational verification workflows.

Next Steps

If the administrator account itself is compromised, or if you require deeper forensic log extraction, contact the official 138 Enterprise Email support team. For critical account recovery, use the contract-registered email to contact kf@138.gz.cn. Do not share passwords or verification codes with unofficial personnel. For ongoing scaling, schedule a quarterly review of your DMARC policies and third-party client access permissions.