Sending via provider's mail

This has long been a tough - or almost impossible - thing for two reasons: Now, to overcome both difficulties, it should be a html page that sends to the mail script rather than the flash movie. In order to use POST method, it specifically should be a html form.

Here is sample html code and matching actionscript - read here for details about the code:
HTML form 

<title>My example website</title>
<script>
//
// this code copyright Musicman
// license: GPL
// to read the gory details, visit www.fsf.org/copyleft
//
// copy this code as is
function myunescape(inp)
{	var n, c;
	var out = '';
	for(n = 0 ; n < inp.length ; )
	{	c = inp.charAt(n);
		if(c == '_')
		{	out += unescape('%'+inp.substr(n+1, 2));
			n += 3;
		}
		else
		{	out += c;
			n++;
		}
	}
	return out;
}
// adjust this code to reflect all the data fields in your movie
function sendit(name, mail, subj, mess)
{	document.forms.sendit.realname.value = myunescape(name);
	document.forms.sendit.email.value = myunescape(mail);
	document.forms.sendit.subject.value = myunescape(subj);
	document.forms.sendit.Message.value = myunescape(mess);
	document.forms.sendit.submit();
	return false;
}
</script>
<body bgcolor=white>
<form name=sendit method=post action="http://www.wallflowerproducts.com/cgi-sys/FormMail.cgi" target=_blank>
<input type=hidden name=recipient value="girls@wallflowerproducts.com">
<input type=hidden name=realname value="">
<input type=hidden name=email value="">
<input type=hidden name=subject value="">
<input type=hidden name=Message value="">
</form>
<embed src="form.swf" width=600 height=400>

the actionscripts
place this code into frame 1 of your movie (if you are using a movieclip or layer for the contact form), place it there: 
a = ord('a'); z = ord('z'); aa = ord('A'); zz = ord('Z');
dig0 = ord('0'); dig9 = ord('9');
function myescape(inp)
{	var out = '';
	var ch, cod;
	var hexc = '0123456789abcdef';
	for(var n = 0 ; n < inp.length ; n++)
	{	ch = inp.charAt(n);
		cod = ord(ch);
		if((cod >= a && cod <= z) || (cod >= aa && cod <= zz) || (cod >= dig0 && cod <= dig9))
			out += ch;
		else
			out += '_' + hexc.charAt((cod >> 4) & 15) + hexc.charAt(cod & 15);
	}
	return out;
}
stop();

place this code on your send button - adjust according to your data fields: 
on(release) {
	getURL('javascript:sendit("'+myescape(realname)+'","'+myescape(email)+'","'+myescape(subject)+'","'+myescape(Message)+'"); void(0)');
}
Of course, if the send button is in a different clip as the form fields, make sure to use proper paths.

Datails:

This code is opening a new browser window, as big as the current one. If you do not want that, you can either For testing proper targetting, replace the button code by something like 
on(release) {
	getURL('javascript:alert("'+myescape(realname)+'"); void(0)');
}
or even 
on(release) {
	getURL('javascript:alert("'+realname+'"); void(0)');
}
if the second one shows a result, but the first one fails, myescape was not found. If either does not sho a result, the textbox was not found.

How does it work - what is myescape()?

Consider this button script (simplified from the above one): 
on(release) {
	getURL('javascript:sendit("'+realname+'","'+email+'","'+subject+'","'+Message+'"); void(0)');
}
This actually constructs a short program like 
sendit("john foo","foo@foomail.com","test","this is a multi-line
test message")
and sends it to the browser. Quite obviously, the browser will not like the line break here - if you see a message, the browser will complain about an incomplete string or such.
Similarly, it would not like quotes within your message, as the also mess up the program

Next attempt - using the builtin escape() and unescape() functions. The new "program" sent to the browser would read: 

sendit("john foo","foo@foomail.com","test","this is a multi-line%0Dtest message")
Now, one browser actually passes the string with the %0D part to the script, and the script faithfully decodes it. Other browsers decode the %0D while reading the program text, and again see a broken line.

Final solution: myescape does exactly the same thing as escape but uses the underline instead of the percent sign to denote escaped codes, and consequently myunescape turns them back.

Please feel free to report any problems, e.g. if you find out that browser x on os y with flash player version z does truncate messages longer than 10000 characters.