[Dovecot] deleteing label (cheating crackers)

[Mohsen Pahlevanzadeh]

Dear all,
When i telnet to my server, I see following things:
[root at daka ~]# telnet 0 110
Trying 0.0.0.0...
Connected to 0.
Escape character is '^]'.
+OK Dovecot ready.

Now i want to delete Dovecot word & put my word.
How i do?

Yours,
Mohsen