Mozilla can't send mails after upgrading to Fedora 

Right after I upgrade my RH9 to Fedora C1, my Mozilla can't send email any more. It will pop up an input box for me to authorize the smtp connection from my user account to localhost. This extra step was never necessary before. More over, even I input my right password, Mozilla will still fail the authorization.

What kind of MTA is used Fedora C1? What is the right way to configure it so that this extra authorization step is not necessary?

I searched on google before raising this question, and it seems that it is still an unsolved problem:

http://www.google.com/groups?hl=en&lr=&ie=UTF-8&threadm=m2y8tjvp3g.fsf%40consult.pretender&rnum=1&prev=/groups%3Fnum%3D50%26hl%3Den%26lr%3D%26ie%3DUTF-8%26scoring%3Dr%26as_drrb%3Dq%26q%3Dmozilla%2Bfedora%2Bsmtp%2B%2Bgroup%253A*linux*%26btnG%3DSearch

,-----
| > > Didi you ever get this working? I have spent many hours trying to
| > > accomplish this exact thing, but with no solution yet...
| >
| > No luck so far... I am surprised that I never heard any responses back
| > since I would have thought that either more people are effected or I
| > am missing something very trivial.
|
| I had the basically the same problem after "upgrading" to
| sendmail-8.12.10-1.1.1 on fedora, with the same error while attempting
| to sendmail through mozilla, though my "usual" mail worked fine. I
| messed around for awhile and can only think it was an unwanted compile
| option.  For now, I fixed the problem by migrating back to
| sendmail-8.12.8-9.90 from redhat 9.  If anyone finds a better
| solution, I'ld be happy to hear it.
`-----

I am wondering if there is any solution to it.

Mozilla can't send mails after upgrading to Fedora 

$ telnet localhost smtp
Trying 127.0.0.1...
telnet: connect to address 127.0.0.1: Connection refused
$ telnet localhost www
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
^]
telnet> quit
Connection closed.
service saslauthd start
Starting saslauthd:                                        [  OK  ]
$ telnet localhost smtp
Trying 127.0.0.1...
telnet: connect to address 127.0.0.1: Connection refused

— still the same