need an alternative to "mailto" to open new mail message

Hi,

We are developing a portal.

There is a requirement to open new mail message in the outlook of user machine with the TO, CC, BCC populated programmatically.

To achieve this we used  the following syntax

"mailto:[email protected][email protected]&[email protected]"

This works fine when the number of recipients is less. However, we need to populate the To, CC, BCC list from the result set of a query which may be even more than 1000 mail ids. In such scenarios the above method fails.

I came to know that the maximum limit of characters allowed is 456 when browsing through the following link

http://lists.evolt.org/archive/Week-of-Mon-20010813/055130.html

If any of you know how to overcome this limitation of "mailto" or an alternative to "mailto", kindly let me know.

Thanks in advance!