Mail IMAP/SMTP

Provides complete email management through IMAP and SMTP protocols including folder operations, search, and sending.

Full-featured email management server supporting IMAP operations (folder management, search, read/unread marking, move/copy) and SMTP sending (with attachments, replies, forwards). Supports SSL, STARTTLS, and OAuth2 authentication across major providers including Gmail, Outlook, and Chinese enterprise email services.