Hi! Everytime I try to add the BESAdmin with these commands:

get-mailboxserver <mail_server_name> | add-exchangeadministrator BESAdmin –role ViewOnlyAdmin

get-mailboxserver <mail_server_name> | add-adpermission –user BESAdmin –accessrights ExtendedRight –extendedrights Send-As, Receive-As, ms-Exch-Store-Admin

I get that error:

[PS] C:\Documents and Settings\Administrator>get-mailboxserver exchange | add-ex
changeadministrator BESAdmin -role ViewOnlyAdmin
Add-ExchangeAdministrator : The input object cannot be bound to any parameters
for the command either because the command does not take pipeline input or the
input and its properties do not match any of the parameters that take pipeline
input.
At line:1 char:55
+ get-mailboxserver exchange | add-exchangeadministrator <<<< BESAdmin -role V
iewOnlyAdmin
[PS] C:\Documents and Settings\Administrator>

Thank you for your help!!!!!