Multiple Emails In Form Submission

I am having a problem with a form that I created. (Done in ASP)

What I am trying to accomplish is this:

A form gets filled out on the web.
The form then gets submitted to at least 2 email addresses, sometimes 3 or 4.

I have noticed that the form makes it to the first 2 email addresses listed, but never any more than that.

Here is the part of the code where I am adding the email addresses:

.To = "email1@address.com;email2@address.com"
'.From = Request.Form("emailfrom") - This line is commented out
.From = "email1@address"
.Subject = "Lease Application - Lease Rep"

That code seems to work fine and the 2 recipients get the form data.

When I add more email addresses to the .to section, it never gets to those recipients. (I am using Semi-Colons to seperate the email addresses)

Here is how I have been adding extra emails to the form:

.To = "email1@address.com;email2@address.com;email3@customer.com"
'.From = Request.Form("emailfrom") - This line is commented out
.From = "email1@address"
.Subject = "Lease Application - Lease Rep"

When I add any more than 2 emails, the form never gets to those intended recipients.