doubts as the installation of IMP in RedHat 7.3

["" <wmp censanet com br>]

             Good morning friends  
  
        I am accomplishing some tests (installation of IMP in a server   
running RedHat 7.3), the installation usually happens, as well as all the   
configuration, but when I try to connect me (acessar through user's bill),   
it is I generated the following erro in the maillog  
  
Jan 29 12:09:15 matrix imapd[7292]: Command stream end of file, while reading 
line user =??? host=UNKNOWN  
  
        Would anybody have the idea of the one what it is happening?!?!?, did 
I already make the   
update of the php-mysql-4.1.2-7, because I found in one of the research 
forums   
that the problem could be the same, but it didn't help a lot (only in the 
update...: -))  
  
  
Ps.:   
        horde-1.2.3.tar / imp-2.2.3.tar  
  
Respectfully
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