HP Service Manager 9.50 not working width mailserver

Hi
The integration unit SmartEmail is configured correctly, according to the instructions.
The protocol "pop3" is configured: as well as on ordinary mail clients with pop3
I send a message by the mail to the SM address but the SM receives only the message header. The message remains in the status New, because the empty message can not be processed.
Using the sniffer between the mailServer and the SM, I managed to catch the protocol commands pop3:

user:
 ok

pass:
 ok logged on

list
1 320
2 290
...

top 1
-ERR Protocol error. 16

top 1
-ERR Protocol error. 16

top 1
-ERR Protocol error. 16

top 1
-ERR Protocol error. 16

top 1
-ERR Protocol error. 16
---------------------
here the session is interrupted after 5 attempts

It turned out:
SM is not right to request the command "top"

This command must have two required parameters. 
First: the message number;
Second: the number of requested lines of the body of the message.
ex: top 1 20

Result:
Messages come empty and can not be processed.



Help me please set up incoming messages!