Imports in module “pkg.jfrech.com/brief” pkg.jfrech.com/brief/decode pkg.jfrech.com/brief/fieldnames pkg.jfrech.com/brief/internal/go_1_21 pkg.jfrech.com/brief/text Standard library imports bufio bytes encoding/base64 errors fmt io mime/quotedprintable net/textproto regexp sort strings time unicode/utf8