Redmine

Hello there,
I have FC5 and I'm using exim as smtp server.
I having problems with sending email with Redmine it requires login authentication, I have smtp server on the same server which runs redmine, but it only authenticate requests from outside and over tls for safety. I do not authenticate localhost because cron script would not be able to work.

Redmine do not authenticate over tls .

SO it is vicious circle. I would have to configure smtp server on second machine with login authentication without tls especialy for redmine. I cannot use google apps because in redmine you have to put IP of smtp server and tls cannot be used.

I would like to send email from redmine over local smtp without authentication. Is it possible ?

Does anybody have a sollution ?
regards
Slawek