Openerp 6.1 mail_message.py to_email

def to_email(text):
    """Returns a list of the email addresses found in ``text``

     According to rfc2822 the allowed characters are letter and digits and
            "!" / "#" /     ;  SP, and specials.
                        "$" / "%" /     ;  Used for atoms
                        "&" / "'" /
                        "*" / "+" /
                        "-" / "/" /
                        "=" / "?" /
                        "^" / "_" /
                        "`" / "{" /
                        "|" / "}" /
                        "~"
    Therefore remove also " and () around the addresses
    and additionally ' because it is sometimes added to names that are taken from email address
    and doubt that other clients can handle it.

    Warning: can create double entries

    """
    if not text: return []
    return re.findall(r'([^ ,(\'"<@]+@[^> ,)\'"]+)',text)