Subject: Re:  New: Cannot send message using any SMTP server. Unrecognised
transport, could not send message

Please turn on Mail Transport in the composer with View->Mail Transport. 
What does it say?

Furthermore please queue a message and try to send it. If sending fails 
then please have a look at the message's source and send us the headers 
of this message.

And you can have a look at the configuration file 
(~/.kde/share/config/kmailrc). Especially interesting are the three 
items in the [Composer] section which have "transport" in their name, 
i.e. current-transport, sticky-transport and transport-history. Also 
interesting are the [Transport #] sections.

missing infos since 8 months 

I seem to have this same problem with the KMail that comes with the new SUSE
9.1 Pro 64-bit.  I can check mail, I just can't send mail.  To test all my
settings I installed Evolution, and that works fine.  KMail send is broke for
me.

Mark, did you really enter your email address for your default identity? Check
whether your message has a valid sender address (with View->From).

Yes, I entered a valid email address, and yes it shows up in the From.

Being VERY frustrated with this, I gave up and did a complete reinstall from scratch of SUSE 9.1, but the problem was still there.  But what's really strange is that after about an hour of looking around the rest of the new system to see what's there (I needed a break from this frustrating problem) I went back to KMail to fight with it some more, but lo and behold, upon opening KMail 3 of the 6 emails that stuck in my outbox all of a sudden went thru!  I then deleted the other 3 test emails, and now any new email I create seems to work!

So, the short of it is, it seems to have fixed itself... I'm just hoping now I never have to reinstall SUSE, 'cus I'm sure it will be broke in the fresh install again, and I have no idea how it got fixed.

But anyway, thanks for responding Ingo... I'll post again if this problem rears it's ugly head again...

I have had same problem as reported by Mark.
After a fresh 9.1 installation i could receive mails, but mails i tried to send stayed in the mail out. I tested Knode with suces, and installed Evoltion, still succes. Then i read the comments from Mark, deleted al mails in mailout, and now i can send mails.

I think, that deleting messages from outbox really helps. I installed newest
kmail (with all KDE) for Knoppix several times and this trick is only thing I
found for this problem. One delete (in konqueror in /home/[me]/mail/outbox/cur
and then in kmail, but I think that simply delete in kmail works too) and all
will work. Thanks for a tip.