Add the ability to mail admin.

depicts/mail.py

@@ -0,0 +1,20 @@
+from flask import current_app
+from email.mime.text import MIMEText
+from email.utils import formatdate, make_msgid
+import smtplib
+
+def send_mail(subject, body):
+    app = current_app
+    mail_to = app.config['ADMIN_EMAIL']
+    mail_from = app.config['MAIL_FROM']
+    msg = MIMEText(body, 'plain', 'UTF-8')
+
+    msg['Subject'] = subject
+    msg['To'] = mail_to
+    msg['From'] = mail_from
+    msg['Date'] = formatdate()
+    msg['Message-ID'] = make_msgid()
+
+    s = smtplib.SMTP(app.config['SMTP_HOST'])
+    s.sendmail(mail_from, [mail_to], msg.as_string())
+    s.quit()