Maximum URL length Issues

How to exceed?

[txbakers]

I could use some brainstorming on this one.

My web app allows the user to select from various filters to produce a list of email addresses. Once built dynamically through ASP, I use a location.href=mailto:<the list> command to open the mail client and send mail.

This works great with moderate sized lists. I ran into a situation where the list was over 3000 characters, exceeding the 2083 characters allowed by IE (http://support.microsoft.com/default.aspx?scid=KB;EN-US;Q208427&).

Has anyone come across a way to beat this? Or, is there a better way of sending the email from the webapp? I don't want to send it through the SMTP server since the return address needs to be a registered user with the mail server to avoid relaying issues.

Any ideas appreciated.

[Xoc]

You can't avoid that limit on a URL from IE. Other browsers may have an even shorter limit.

So how about still doing it on the server, but filling in the Reply-To field [ietf.org] when you send?

You can find the details on the CDONTs object on the Microsoft web site [msdn.microsoft.com]. So, untested, you could do this:

' strBody set in advance for message body 
Dim objNewMail
Set objNewMail = Server.CreateObject("CDONTS.NewMail")
objNewMail.Value("Reply-To") = "The Boss<[e-mail]>" 
objNewMail.Send "[e-mail]", _ 
"[e-mail]", _ 
"Reorganization", strBody, 2 ' high importance 
Set objNewMail = Nothing 

[txbakers]

Thanks Xoc.

I'm using ASPMail which requires a recipient name as well as the address. I could try CDONTS as well.

Is there a limit to the number of names through CDONTS?

Also, how will this affect the relay protection on my Mail Server? I'm not using the MS SMTP server, I have a third party server.