By default Magento only has one filed to input the recipient of the contact form (in admin).
If you would like to get this sent to several email addresses then a small hack is required as Magento adds some encding to address in this field.
Use
mail@example1.com>, name <mail@example2.com
to send to two recipients. name is the name shown as the address in the second mail.
To send to 3 addresses use
mail@example1.com>, name <mail@example2.com>,name2<mail@example3.com
To sent to 4 or more, just add more as in the 3 addresses example
Tags: contact form, email, Magento

hello ,
Its work for me earlier in lower version in 1.3.2 but
Can not work it for me. at magento 1.4.2.0
Tank you
Hridaya
Nice to hear that this worked in earlier versions as well.
Unfortunately we have yet to upgrade to 1.4.* so I can’t help you here right now I am afraid.
Thanks, works like a dream!