package koushin import ( "fmt" "github.com/emersion/go-imap" imapclient "github.com/emersion/go-imap/client" "github.com/emersion/go-message/charset" ) func init() { imap.CharsetReader = charset.Reader } func (s *Server) dialIMAP() (*imapclient.Client, error) { var c *imapclient.Client var err error if s.imap.tls { c, err = imapclient.DialTLS(s.imap.host, nil) if err != nil { return nil, fmt.Errorf("failed to connect to IMAPS server: %v", err) } } else { c, err = imapclient.Dial(s.imap.host) if err != nil { return nil, fmt.Errorf("failed to connect to IMAP server: %v", err) } if !s.imap.insecure { if err := c.StartTLS(nil); err != nil { c.Close() return nil, fmt.Errorf("STARTTLS failed: %v", err) } } } return c, err }