I'm using rcmail 0.7 from source. I setup everything but don't understand the identitities_level feature in main.inc.php and the identities generally.

I want to create a new mail, but even if I have identities_level = 3, I can specify the From: address and even if I don't enter any, I'm noticed with message box, that I must enter some From: address. Why?? Because I can enter ANY address for example something like 'nonexistent@email.com' if I really want (the only domain part is checked).

How is the idea of this? Am I missing something or do I have to configure something more? According to me, the textbox for entering ANY email address should be replaced with label 'myownemail@address.com' and link for editing identities should disappear...

Thank you Best regards, Tomas