stunnel config; need help

Trying to use stunnel for NNTPS. Here is the config:

Code:

; Some performance tunings
socket = l:TCP_NODELAY=1
socket = r:TCP_NODELAY=1

; Some debugging stuff useful for troubleshooting
debug = 7
output = stunnel.log

; Use it for client mode
client = yes

; Service-level configuration
[nntps]
accept = 119
connect = secure.news.easynews.com:563

stunnel starts up normally, so I know the config is at least syntactically correct. However, my newsreader simply ignores it. I was assuming that stunnel would intercept any packets destined for port 119 and perform the translation. Is there anything special that needs to be done to the configuration of the newsreader?

BTW, I've tested NNTPS using Outlook Express, which is NNTPS-enabled, so I know that's working too.

Thanks!