5.7.1 Spam message rejected

Question

Python

"5.7.1 Spam message rejected; If this is not spam contact abuse at rambler-co.ru" Tells
me, I fill the message using the email module

Code snippet

msg = MIMEText(email_text, 'plain', 'utf-8')
msg['From'] = email
msg['To'] = dest_email
msg['Subject'] = subject
msg.set_charset('utf-8')

And it still goes to spam, are there any suggestions for solving the problem? Perhaps the subject and message should be long?

Answer 1

Send exactly the same letter to mail-tester.com, post the result here if you need more advice, but as a rule everything is clear there.