ldapsearch - Active Directory proxyaddresses:smtp

I am trying to filter proxyaddress:smtp email addresses querying Active Directory. I need to use this for sendmail address lookup. I tried the following queries but they give a lot of extraneous information I don't need. Any help would be much appreciated. Thanks.

- ldapsearch -x -h 192.168.25.16 -p 3268 -b "DC=company,DC=com" "(&(proxyAddresses=SMTP:*))"

- ldapsearch -x -h 192.168.25.16 -p 3268 -b "DC=company,DC=com" -P2 -s sub "objectclass=*" SMTP

- ldapsearch -x -h 192.168.25.16 -p 3268 -b "DC=company,DC=com" -P2 -s sub "proxyAddresses=*"

Normally the address comes in this exact format while querying Active Directory: "proxyAddresses: SMTP:firstname.lastname@company.com"

Thanks.