x2764tech

It doesn’t – it delegates the actual task of sending emails to PHPMailer from the WordPress installed, which seems to try TLS v1.0, v1.1, or v1.2 (on the 5.2 legacy branch which is included in WordPress) – using php’s stream_socket_enable_crypto

If you don’t store the url in a meta field – for example, if you use the MultiPostThumbnails which stores the attachment ID in a meta field – you can use the crp_thumb_url filter, eg:

function my_filter_crp_thumbnail_url($url, $width, $height, $post) {
    //return a custom url or $url
}
add_filter('crp_thumb_url', 'my_filter_crp_thumbnail', 10, 4);

If you use wp-cli, this is a real pain, so I’ve changed:

$this->WP_Widget('author_image', __('Author Image', 'sem-author-image'), $widget_ops)

to

parent::__construct('author_image', __('Author Image', 'sem-author-image'), $widget_ops)

in the constructor of the author_image widget (I’m giving no futher information as I strongly discourage you from editing the source code of plugins unless you know what you’re doing)