XF 2.1 Bounce connection error: host doesn't allow connection

[USY]

Hello Guys,

to prevent member unverfied mails and remove the current ones,i just activate

My Settings in XF 2.1:





But i get following Error




here are the details:



There no restiction under cPanel Mail Settings:




Do you guys any idea what is causing this error ?

 

[BasilFawlty]

Did you ever get resolution? I'm having the same error