PLESK 8.1.0 XML API {Disable email account}

[khurram_awan]

hi anyone can tell me how i can disable email account using PLESK XML api
I am using Following code and getting error "Parser error: Request is invalid "

<?xml version="1.0" encoding="UTF-8"?>
<packet version="1.4.1.0">
<mail>
<DISABLE>
<filter>
<domain_id>1</domain_id>
<mailname>
<name>TEST</name>
</mailname>
</filter>
</DISABLE>
</mail>
</packet>