Difference between revisions of "Trusted Email Services"

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(Mail Submission)
(Mail Submission)
Line 44: Line 44:
  
 
* Listener setting
 
* Listener setting
 +
** A TLS certificate
 +
** A auth flow
 
** Require TLS for AUTH
 
** Require TLS for AUTH
  
 
<hsl type="data">
 
<hsl type="data">
 
DKIMSign($selector, $senderdomain, $rsakey);
 
DKIMSign($selector, $senderdomain, $rsakey);
 +
</hsl>
 +
 +
<hsl type="predelivery">
 +
if (tes_is_member())
 +
{
 +
    SetTLS([
 +
        "tls_protocols" => "!SSLv2,!SSLv3,!TLSv1,!TLSv1.1",
 +
        "tls" => "dane_require"
 +
    ]);
 +
}
 
</hsl>
 
</hsl>
  

Revision as of 15:10, 14 March 2016

function tes_check_client_policy()
{
    global 
$saslauthed$tlsstarted$tlsprotocol;
    if (!
$tlsstarted)
        return 
false;
    if (
$tlsprotocol == "SSLv2" or
        
$tlsprotocol == "SSLv3" or
        
$tlsprotocol == "TLSv1")
        return 
false;
    if (!
$saslauthed)
        return 
false;
    return 
true;
}
function 
tes_check_member_server_policy()
{
    global 
$tlsstarted$tlsprotocol$tlsciphers$tlskeysize;
    if (!
$tlsstarted)
        return 
false;
    if (
$tlsprotocol == "SSLv2" or
        
$tlsprotocol == "SSLv3" or
        
$tlsprotocol == "TLSv1" or
        
$tlsprotocol == "TLSv1.1")
        return 
false;
    return 
true;
}
function 
tes_check_nonmember_server_policy()
{
    global 
$tlsstarted$tlsprotocol$tlsciphers$tlskeysize;

Mail Submission

On client submission port (587) use the following script.

if (!tes_check_client_policy())
    
Reject("Client is not TES compliant"); 

And the following configuration:

  • Listener setting
    • A TLS certificate
    • A auth flow
    • Require TLS for AUTH

DKIMSign($selector$senderdomain$rsakey); 

if (tes_is_member())
{
    
SetTLS([
        
"tls_protocols" => "!SSLv2,!SSLv3,!TLSv1,!TLSv1.1",
        
"tls" => "dane_require"
    
]);

Mail Relay

Use the following script.

if (tes_is_member()) {
 if (!
tes_check_member_server_policy())
    
Reject("Member is not TES compliant");
} else {
 if (!
tes_check_nonmember_server_policy())
    
Reject("Server is not TES compliant");

Receiving DATA (25)

$result DKIMSDID([$senderdomain]);
if (
$result[$senderdomain] != "pass")
 
Reject();
AddHeader("X-TES-Status"tes_is_member()?"member":"non-member"); 

Sending DATA (587)

DKIMSign($selector$senderdomain$rsakey);