Error “”The site /ssp/admin could not be created” during SSP Creation

i am using & have a emailing module
when i use gmail host i amable 2 send the mail but when i am using yahoo host i get  error msg
the yahoo id & password are right  but still getting the below msg

Windows Internet Explorer
  ‘ The SMTP server requires a secure connection or the client was not authenticated. Authentication Required. ‘  

I have little experience with Yahoo, so I don’t know what their requirements are, but are you providing credentials when trying to send mail?

svibuk:  ‘ The SMTP server  requires a secure  connection or the client  was not authenticated. Authentication Required. ‘ Might be you gave wrong password , double check that,..have you set   SmtpClient.EnableSsl = True

Hi, use credential and Enable SSLsome similar posts are below: