Max Length for BCC's in Email?

I have a program that sends out and email blasts to all the people that are the members of a certain office. I have the offices and office members emails in my table and I use the <A href:"mailto..etc" to send out this email blasts and populate the names in that tag using PHP. It works great, until I reach about 90 office members. At 88 I could click the button and outlook would pop right up. But once I got to anything about 90-95 and click on the button, nuffin happens. The computer just stares at me laughing. Is there an outlook limit on how many BCC's you can send? I tried this under netscapes mail system and I could get as least 150 in the BCC. Anybody know?

Thanks

I've heard there is a limit but I didn't know how much it is.

couldn't you just make a group and have everybodies email in that group and that way it will send to one email address but to everybody. did that make since?

so I have 2 emails and I group them togther and came up with 1 email "[email protected]" somehting like that. then I send to that addy and those 2 poeple would get the email. no need for a BCC