Evolution keeps using wrong password instead of asking it again

[giacof]

I sent an email via SMTP and mistyped the password, so the server rejected the message. Then I tried to send again the same message.

Expected behavior: a new dialog should have prompted for the correct password.

What happened instead: Evolution did NOT ask the password again, but tried to send the message reusing the wrong one! The following popup was then displayed:

The reported error was "AUTH command failed: ...authentication rejected"

Below the message are three buttons, the last of which is "Retry", but it keeps using the wrong password

I even tried to exit Evolution and restart it, but it was still remembering the wrong password instead of asking it!

Package Version: 3.18.5.2
OS: Ubuntu Gnome 16.04.1 LTS