Imports github.com/emersion/go-message/charset github.com/emersion/go-message/mail github.com/wneessen/go-mail github.com/emersion/go-imap/v2 github.com/emersion/go-imap/v2/imapclient github.com/modelcontextprotocol/go-sdk/mcp Standard library imports bytes context crypto/tls encoding/json errors fmt html io log net net/mail os path/filepath regexp sort strconv strings time