SMTP 服务器与python3

Question

I'm trying to send an email to my webmail(yahoo) using python3 but I have some problems with the object. I've tried with different ports (25/465/587) without any success:

import smtplib

sender = 'manolo@yahoo.es'
receivers = ['raul@yahoo.es']

message = """From: From Person <from@fromdomain.com>
To: To Person <to@todomain.com>
Subject: SMTP e-mail test

This is a test e-mail message.
"""

try:
   smtpObj = smtplib.SMTP_SSL('smtp.mail.yahoo.com', 465) ### 587)
   smtpObj.set_debuglevel(1)
   smtpObj.login(sender, pass)
   smtpObj.sendmail(sender, receivers, message)         
   print("Successfully sent email")
except SMTPException:
   print("Error: unable to send email")

And this is the error I get:

send: 'ehlo [192.168.0.15]\r\n' reply: b'250-kubenode501.mail-prod1.omega.ir2.yahoo.com Hello [192.168.0.15] [81.61.24.111])\r\n' reply: b'250-PIPELINING\r\n' reply: b'250-ENHANCEDSTATUSCODES\r\n' reply: b'250-8BITMIME\r\n' reply: b'250-SIZE 41697280\r\n' reply: b'250 AUTH PLAIN LOGIN XOAUTH2 OAUTHBEARER\r\n' reply: retcode (250); Msg: b'kubenode501.mail-prod1.omega.ir2.yahoo.com Hello [192.168.0.15] [81.61.24.111])\nPIPELINING\nENHANCEDSTATUSCODES\n8BITMIME\nSIZE 41697280\nAUTH PLAIN LOGIN XOAUTH2 OAUTHBEARER' send: 'AUTH PLAIN AGF1c3RyYWxiaXRAeWFob28uZXMAQWFsaWNpYTAy\r\n' reply: b'535 5.7.0 (#AUTH005) Too many bad auth attempts.\r\n' reply: retcode (535); Msg: b'5.7.0 (#AUTH005) Too many bad auth attempts.' send: 'AUTH LOGIN YXVzdHJhbGJpdEB5YWhvby5lcw==\r\n' Error: unable to send email

Any idea about how to fix this error?

Answer 1

There are a few things to fix:

1. Use smtplib.SMTP_SSL('smtp.mail.yahoo.com', 465) because port 465 expects connection using SSL.

2. Add smtpObj.set_debuglevel(1) to have better help with debugging - this will tell you that you need to login first.

3. Use smtpObj.login("login", "password") before trying to send an email.