Can't login websieve

[Sam]

Hajimu UMEMOTO wrote:
> Hi,
>
>   
>>>>>> On Wed, 23 Aug 2006 18:08:57 +1000
>>>>>> Sam <sam at kanji.com.au> said:
>>>>>>             
>
> sam> # sivtest -a cyrus localhost
> sam> getaddrinfo: servname not supported for ai_socktype
> sam> failure: Network initialization - can not connect to localhost:sieve
>
> The error message is out when a specified service name is not found in
> /etc/services.  I suspect you didn't add `sieve' entry like following
> into your /etc/services:
>
> 	sieve		2000/tcp   callbook
>
> Sincerely,
>
>   

Thanks for the suggestion, the port 2000 is already assigned to another 
service in the /etc/service file.
eg.

callbook        2000/tcp
callbook        2000/udp

I m not sure whether I can overwrite it or remove the callbook service 
and add sieve service to it.
After I added sieve service, how to activate it?

Any suggestion?
S