pass: smtp.gmail.com:465
fail: smtp.gmail.com:465
pass: smtp.gmail.com:465
pass: smtp.gmail.com:587
pass: smtp.gmail.com:587
fail: mailtrap.io:465
pass: mailtrap.io:465
fail: smtp.mail.yahoo.com:465
pass: smtp.office365.com:587
pass: smtp.office365.com:587
pass: smtp.office365.com:465