SASL on QPOPPER 4.0.4

[Gene Grimm <elessar@noi.net>]

I have been trying to use the HOWTO at 
http://slowest.net/docs/howtos/mail/qpopper-ssl.html
to configure current stable Qpopper package for secure communication.
However, when I configured Netscape to use SSL, I got an error message
saying that the certificate was corrupted or invalid. The mail log shows:

OpenSSL error during handshake
...SSL error: error:14094412:SSL routines:SSL3_READ_BYTES:sslv3 alert 	 
        bad certificate
TLS/SSL Handshake failed: -1

Any suggestions on where to look to solve this error?