Here are my settings under "Sending" in kmail. I have highlighed the ones that seem most suspect to me: Under "Modify"...I get the "Modify Transport" box for "Transport:SMTP": "General" tab: Name:wmeler@gmail.com Host:smtp.gmail.com Port:465 [or 587, as mentioned earlier] Precommand:[LEFT IT BLANK] Server requires authentication (Checked ON) Login: wmeler@gmail.com Password: ********** Store SMTP password (Checked ON) Send custom hostname to server (Checked OFF) "Security" tab: Encryption:TLS Authentication Method:PLAIN [Check What the Server Supports completes without an error and gives me the same settings on the Security tab.] Common Options (below the "Outgoing accounts"): Confirm before send (UNCLICKED) Send messages in outbox folder: Never Automatically Default send method: Send Now Message property: MIME Compliant (Quoted Printable) Default Domain: 127.0.0.1 The last one bothers me the most, because I'm not sure what it was originaly set to. Receives continue to work just fine. -- Cheers, wmeler