use easier format

Author: CTY-git

patchwork/steps/SendEmail/SendEmail.py

@@ -1,7 +1,7 @@
 from __future__ import annotations
 
 import smtplib
-from email.mime.text import MIMEText
+from email.message import EmailMessage
 
 from patchwork.common.utils.input_parsing import parse_to_list
 from patchwork.common.utils.utils import mustache_render
@@ -25,10 +25,11 @@ def __init__(self, inputs):
         self.is_ssl = bool(inputs.get("is_smtp_ssl", False))
 
     def run(self) -> dict:
-        msg = MIMEText(mustache_render(self.body, self.email_template_value))
+        msg = EmailMessage()
+        msg.set_content(mustache_render(self.body, self.email_template_value))
         msg["Subject"] = mustache_render(self.subject, self.email_template_value)
         msg["From"] = self.sender_email
-        msg["To"] = ",".join(self.recipient_email)
+        msg["To"] = ", ".join(self.recipient_email)
         if self.reply_message_id is not None:
             msg.add_header("Reference", self.reply_message_id)
             msg.add_header("In-Reply-To", self.reply_message_id)
@@ -39,6 +40,5 @@ def run(self) -> dict:
 
         with smtp_clazz(host=self.smtp_host, port=self.smtp_port) as mailserver:
             mailserver.login(self.smtp_username, self.smtp_password)
-            mailserver.sendmail(self.sender_email, self.recipient_email, msg.as_string())
-
+            mailserver.send_message(msg)
         return dict()