Fix email header
diff --git a/staffeln/common/email.py b/staffeln/common/email.py
index 6aaaf9b..cf6e937 100644
--- a/staffeln/common/email.py
+++ b/staffeln/common/email.py
@@ -1,7 +1,9 @@
 """ Email module with SMTP"""

 

 import smtplib

+from email import utils

 from email.header import Header

+from email.mime.multipart import MIMEMultipart

 from email.mime.text import MIMEText

 

 from oslo_log import log

@@ -11,15 +13,23 @@
 

 def send(smtp_profile):

     """Email send with SMTP"""

-    dest_header = (

-        smtp_profile["dest_email"]

-        if isinstance(smtp_profile["dest_email"], str)

-        else str(smtp_profile["dest_email"])

+    if isinstance(smtp_profile["dest_email"], str):

+        dest_header = smtp_profile["dest_email"]

+    elif isinstance(smtp_profile["dest_email"], list):

+        dest_header = ", ".join(smtp_profile["dest_email"])

+    else:

+        dest_header = str(smtp_profile["dest_email"])

+    msg = MIMEMultipart("alternative")

+    msg["Subject"] = Header(smtp_profile["subject"], "utf-8")

+    msg["From"] = "{} <{}>".format(

+        Header(smtp_profile["src_name"], "utf-8"), smtp_profile["src_email"]

     )

-    message = MIMEText(smtp_profile["content"], "html", "utf-8")

-    message["From"] = Header(smtp_profile["src_name"], "utf-8")

-    message["To"] = Header(dest_header, "utf-8")

-    message["Subject"] = Header(smtp_profile["subject"], "utf-8")

+    msg["To"] = dest_header

+    msg["Message-id"] = utils.make_msgid()

+    msg["Date"] = utils.formatdate()

+    content = MIMEText(smtp_profile["content"], "html", "utf-8")

+    msg.attach(content)

+

     try:

         smtp_obj = smtplib.SMTP(

             smtp_profile["smtp_server_domain"], smtp_profile["smtp_server_port"]

@@ -33,7 +43,7 @@
         # SMTP Login

         smtp_obj.login(smtp_profile["src_email"], smtp_profile["src_pwd"])

         smtp_obj.sendmail(

-            smtp_profile["src_email"], smtp_profile["dest_email"], message.as_string()

+            smtp_profile["src_email"], smtp_profile["dest_email"], msg.as_string()

         )

         # Email Sent

     except smtplib.SMTPException as error: