Имя отправителя на кириллице в сообщениях на почтовые сервера mail, yandex или gmail

def send(self) -> None:
    if not self.checkParams():
        return
 
try:
    msg = MIMEMultipart('alternative')
    msg['Subject'] = self.__subject
    msg['From'] = self.__sender + ' <' + self.__emailAddress + '>'
    msg['To'] = ', '.join(self.__recipients)
    msg['Reply-To'] = self.__emailAddress
    msg['Return-Path'] = self.__emailAddress
 
    part_html = MIMEText(self.__massage, 'html')
 
    for file in self.__filePathList:
        if os.path.isfile(file):
            filepath = file
            basename = os.path.basename(filepath)
            filesize = os.path.getsize(filepath)
            part_file = MIMEBase('application', 'octet-stream; name="{}"'.format(basename))
            part_file.set_payload(open(filepath, "rb").read())
            part_file.add_header('Content-Description', basename)
            part_file.add_header('Content-Disposition', 'attachment; filename="{}"; size={}'.format(basename, filesize))
            encoders.encode_base64(part_file)
            msg.attach(part_file)
 
    msg.attach(part_html)
 
    mail = smtplib.SMTP_SSL(self.__server)
    mail.login(self.__emailAddress, self.__password)
    mail.sendmail(self.__emailAddress, self.__recipients, msg.as_string())
    mail.quit()
 
except Exception as e:
    print(e)

self.__sender + ' <' + self.__emailAddress + '>

self.__sender

self.__sender

mail.sendmail(self.__emailAddress, self.__recipients, msg.as_string())

msg.as_string()