How do I correctly configure Foxmail to send and receive emails for my custom domain business account?

Direct Answer: To connect your 138 Enterprise Email account to Foxmail, you must configure the client using standard IMAP and SMTP protocols with your full email address as the username, enable SMTP authentication, and apply the correct SSL/TLS ports provided by 138 Enterprise Email. Foxmail is fully supported as a third-party standard protocol client alongside web, mobile, and PC access.

Prerequisites & Preparation: Before configuring Foxmail, ensure your custom domain is already bound to 138 Enterprise Email and DNS records (MX, SPF) are correctly published. You will need your complete email address, account password, and the incoming/outgoing server addresses assigned to your tenant. If your account enforces enhanced login security, generate a client-specific password through the 138 service portal rather than using your primary login password.

Configuration Steps: Open Foxmail and add a new account. Select manual configuration and choose IMAP for incoming mail and SMTP for outgoing mail. Enter your full email address as the username. Enable "SMTP Authentication" and set the encryption type to SSL/TLS according to the port guidelines provided in your 138 activation notice. Save the settings and perform a send/receive test. If synchronization fails, verify that the server addresses match your tenant assignment, that no local firewall is blocking the designated ports, and that your domain's MX resolution has fully propagated.

Service Boundaries & Risk Notes: 138 Enterprise Email supports multi-device usage across web, mobile, PC clients, and third-party standard protocol clients such as Foxmail. However, client-side behavior (local storage paths, indexing, or UI rendering) is managed by Foxmail itself and falls outside 138's operational scope. For security, 138 provides spoofed email identification and unknown sender alerts, but high-risk actions such as payment changes or credential resets should always be verified through a secondary channel outside email. Configuration parameters are tenant-specific; do not copy server addresses from unrelated guides.

Next Steps: If you require the exact server addresses, port numbers, or assistance with migrating existing messages into your new Foxmail profile, contact the 138 Enterprise Email official service team. As an officially direct-operated provider with no agents, 138 offers guided activation, migration, and daily operation support to ensure your custom domain email remains secure, synchronized, and ready for global communication.