input: 
  from typing import List
  import re
  
  def validate_mail_list(mail_list: List[str]) -> bool:
      """ Validate a list of email addresses. The function should return True if all email addresses are valid, otherwise False.
      >>> validate_mail_list(["example.user@gmail.com", "bad@example"])
      False
      >>> validate_mail_list(["john.doe@example.com", "jane.smith@domain.org"])
      True
      """
      for mail in mail_list:
          if not re.match("[^@]+@[^@]+\.[^@]+", mail):
              return False
      return True
  
output:     for mail in mail_list:
          if not re.match(r"^[a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\.[a-zA-Z0-9-.]+$", mail):
              return False
      return True