mail

#/var/www/mail/config-v1.1.xml.php

------------------------------------
<?php
$emailaddress = $_GET["emailaddress"];
$username = "%EMAILADDRESS%";
$password = "";

switch ($emailaddress) {
case "foo@example.com":
$username = "foo";
$password = "pass1234";
break;
}

header('Content-type: text/xml');
?>

example.com
example.net

Foo Inc.
mr

imap.example.com
143
STARTTLS
password-cleartext
<?php echo($username); ?>
<?php echo($password); ?>

smtp.example.com
25
STARTTLS
password-cleartext
<?php echo($username); ?>
<?php echo($password); ?>

------------------------------------

Links
https://www.heise.de/ct/ausgabe/2013-8-Selbstkonfiguration-von-E-Mail-Clients-2324925.html
https://developer.mozilla.org/de/docs/Mozilla/Thunderbird/Autokonfiguration