Problem mailto with a long body

I have a problem with the GotoURL when I create a mail with a long body

If the body is not so long the mail is created correctly, but when the body is long (I have tried with 2515 characters), the mail is not created.

Can someone help me?

It would probably be helpful to see the code that is failing for you.

It sounds like you are trying to send the body of a mail message via a URL? If so that sounds very dangerous. Anyone could hijack your URL to send all sorts of spam messages.

Instead of doing mailto, why not use smtpsocket.

URL is limited to something, e.g. 4000 characters.

If you have some none special characters like spaces, they get encoded and need 3 characters.