[toaster] SMTP Problem

[qmail]

Now smtp over SSL is working fine but I got another 2 problems: 

1.  I can only send out message with SSL enable in outlook express.
2.  I got the message "the signature of certificate can not be verified" 
every time when I try to get mail from server.  I must click "YES" to make 
sure it works. 

Does anyone have such problems??