kmail don't show error messages anymore

Hi, with F13 , kde-4.4.3 

If I disable all network , I try push email , and kmail , just say "no
new messages" instead "can't connect to host x " 

This is very annoying because I don't know if kmail had connect to
server or not, and if I really don't have new messages, using a laptop
everywhere, with different networks . 

Thanks,  
-- 
Sérgio M. B.

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