SMTP broken on 5.6.3.5

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stream_socket_enable_crypto(): SSL operation failed with code 1. OpenSSL Error messages: error:1408F10B:SSL routines:SSL3_GET_RECORD:wrong version number in /public_html/eec/updates/concrete5.6.3.5_remote_updater/concrete/libraries/3rdparty/Zend/Mail/Protocol/Smtp.php on line 206

I can't find a solution for this, and using the Default PHP Mail Function only works sometimes.

Is there a fix for this issue? TLS/SSL works just fine for my other sites that are running wordpress, smf, probably a few others.