When setting up a new SMTP account, the auto-detect feature probes the server for settings using port 25, even when a different port has been selected in the dialogue.

Additionally, in the default case where no other port has been selected, the auto-detect should try the mail submission (MSA) port (587) as well as the MTA port 25.  587 is the standard (if perhaps still less common) port for what kmail is doing, mail submission.

Reproducible: Always

Steps to Reproduce:
0. Get a mail account on a server that uses the MSA port 587.
1. Open Kmail configuration dialogue and go to Accounts section, Sending tab.
2. Click the 'Add' button, select SMTP and give the account a name.
3. Enter the account information.  In the Advanced tab, enter port 587.
4. Click the 'Auto Detect' button.
Actual Results:  
The auto-detect action failed to detect the correct server settings and said that authentication is not supported by the server (my mail server doesn't accept authentication on port 25).  Kmail didn't try the port I configured, 587.

Expected Results:  
Kmail should try to use the port that is entered by the user.  Additionally, it should try port 587 by default as well as port 25.

When the auto-detect failed to work correctly (my server doesn't accept authenticated mail submission on port 25) I checked my server logs and saw that kmail was only trying port 25.