Are you able to authorize without providing a password?

[kikaragyozov]

If you've made your own SMTP inhouse server, and made an account without a password - are you able to use SmtpClient to successfully authorize within it? Or does the library make assumptions that a password must always be present?

[jstedfast]

The SmtpClient can be used with or without calling the Authenticate() method. In your scenario, you would not want to call the Authenticate() method because you have no username or password.

[kikaragyozov]

@jstedfast I did not mention that there's no username. I mentioned that there's a username with no password setup. Will the library handle this case successfully?

Thank you for making an amazing library like this!

[jstedfast]

Then I guess you would use an empty string as your password.

SMTP servers usually either require username/password or no authentication at all. It is abnormal to require a username without a password.