Delphi + Indy: Connection closed gracefully

Question

Using D7 + Indy 10 latest build.

My code is using TIdSMTP to send email. I keep getting \"Connection closed gracefully\" at some end-users, and the email is never s

Answer 1

In my case the error was caused because I used a sender email address from a different domain than the one hosted by the smtp server, that's why the smtp server rejected the connection.