SSL version may need to be explicitly set

[matthewhawker]

This script will not work on debian wheezy when it comes out (php5.4/curl 7.26) because the CTCT servers will reject the connection (as an added bonus, the process ties down the entire server for 30 seconds or so). For my configuration, this was fixed by adding the following to line 1117 of Authentication.php

curl_setopt($curl, CURLOPT_SSLVERSION,3);

I do not know what effects this might have on other configurations.