def build_welcome_mail():
current_path = os.path.dirname(os.path.abspath(__file__))
with open(os.path.join(current_path, '..', 'assets', 'welcome.mail')) as mail_template_file:
mail_template = message_from_file(mail_template_file)
welcome_mail = InputMail()
welcome_mail.headers['To'] = InputMail.FROM_EMAIL_ADDRESS
welcome_mail.headers['Subject'] = mail_template['Subject']
welcome_mail.headers['Date'] = iso_now()
welcome_mail._mime = MIMEMultipart()
for payload in mail_template.get_payload():
welcome_mail._mime.attach(payload)
if payload.get_content_type() == 'text/plain':
welcome_mail.body = payload.as_string()
return welcome_mail
