Version:            (using KDE KDE 3.5.4)
Installed from:    Ubuntu Packages
OS:                Linux

After upgrading from kde 3.5.3 to kde 3.5.4 and trying to send mail using the smtp protocol it fails with the following message.

Sending failed:
The process for the smtp://hostname protocol died unexpectedly.
The message will stay in the 'outbox' folder until you either fix the problem (e.g. a broken address) or remove the message from the 'outbox' folder.
The following transport protocol was used:
protocolname.

In kde 3.5.3 there were no problems. The same problem has happened on two different computers. Both computers use kubuntu dapper 6.06 and are fully up to date. There is no indication in the logs of any error messages that I could find.

I have tried all different combinations of settings and removed and re-installed kmail and kdebase-kio-plugins with no success.

Here is the relevent excerpt from kmailrc

[Transport 1]
auth=true
authtype=NTLM
encryption=NONE
host=xxxxxxx
id=somenumberideleted
localHostname=
name=Erkunt Tarim
port=25
precommand=
specifyHostname=false
storepass=false
type=smtp
user=xxxxxxxxxxx

[sending mail]
Immediate=true
Quoted-Printable=true