[FEATURE] Support email client autodiscovery for automatic IMAP/SMTP configuration

[maneeshaxyz]

Summary

Currently, users must manually configure their email clients with server details such as IMAP/SMTP hosts, ports, and security settings. Many modern email clients support automatic configuration (autodiscovery), which allows them to determine the correct server settings using standardized endpoints and DNS records.

Supporting autodiscovery will significantly simplify account setup for users and improve compatibility with common clients such as Microsoft Outlook, Mozilla Thunderbird, and Apple Mail.

Why is this feature needed?

With autodiscovery enabled, users only need to enter their email address and password, and the client can automatically retrieve the correct IMAP and SMTP configuration.

Alternatives Considered

No response

Additional Context

Goals

Allow email clients to automatically configure accounts

Reduce manual configuration errors

Improve compatibility with common desktop and mobile mail clients

Provide a standardized way for clients to discover service configuration