feat: add support for smtp when send email (#2409)

api/libs/smtp.py

@@ -0,0 +1,26 @@
+import smtplib
+from email.mime.multipart import MIMEMultipart
+from email.mime.text import MIMEText
+
+
+class SMTPClient:
+    def __init__(self, server: str, port: int, username: str, password: str, _from: str, use_tls=False):
+        self.server = server
+        self.port = port
+        self._from = _from
+        self.username = username
+        self.password = password
+        self._use_tls = use_tls
+
+    def send(self, mail: dict):
+        smtp = smtplib.SMTP(self.server, self.port)
+        if self._use_tls:
+            smtp.starttls()
+        smtp.login(self.username, self.password)
+        msg = MIMEMultipart()
+        msg['Subject'] = mail['subject']
+        msg['From'] = self._from
+        msg['To'] = mail['to']
+        msg.attach(MIMEText(mail['html'], 'html'))
+        smtp.sendmail(self.username, mail['to'], msg.as_string())
+        smtp.quit()