add smtp test function

utils/shortcuts.py

@@ -5,6 +5,7 @@ from base64 import b64encode
 from io import BytesIO
 
 from django.utils.crypto import get_random_string
+from envelopes import Envelope
 
 
 def rand_str(length=32, type="lower_hex"):
@@ -63,3 +64,15 @@ def timestamp2utcstr(value):
 def natural_sort_key(s, _nsre=re.compile(r"(\d+)")):
     return [int(text) if text.isdigit() else text.lower()
             for text in re.split(_nsre, s)]
+
+
+def send_email(smtp_config, from_name, to_email, to_name, subject, content):
+    envelope = Envelope(from_addr=(smtp_config["email"], from_name),
+                        to_addr=(to_email, to_name),
+                        subject=subject,
+                        html_body=content)
+    return envelope.send(smtp_config["server"],
+                         login=smtp_config["email"],
+                         password=smtp_config["password"],
+                         port=smtp_config["port"],
+                         tls=smtp_config["tls"])