(PHP Extension) SMTP/POP3 Enable/Disable TLS 1.3

Chilkat started supporting TLS 1.3 in version 9.5.0.82. For versions 9.5.0.82 and 9.5.0.83, TLS 1.3 was not enabled by default. A program could enable TLS 1.3 by including the "EnableTls13" keyword in the UncommonOptions property.

In Chilkat v9.5.0.84 and later, TLS 1.3 is enabled by default. TLS 1.3 can be disabled by including the "DisableTls13" keyword in UncommonOptions. This will cause TLS 1.2 to be used instead.

Chilkat PHP Downloads PHP Extension for Windows, Linux, MacOS, Alpine Linux, Solaris

<?php

// The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number.
// For example, if using Chilkat v9.5.0.48, then include as shown here:
include("chilkat_9_5_0.php");

$mailman = new CkMailMan();

// In Chilkat v9.5.0.82 and .83, TLS 1.3 is not enabled by default. 
// To enable TLS 1.3, add the keyword "EnableTls13" to the UncommonOptions property.
$mailman->put_UncommonOptions('EnableTls13');

// In Chilkat v9.5.0.84 and later, TLS 1.3 is enabled by default.
// If disabling TLS 1.3 is needed (for some unanticipated reason), then add the keyword
// "DisableTls13" to UncommonOptions
$mailman->put_UncommonOptions('DisableTls13');

?>