SMTP, TLS Version, Sending through Postmark Errors

I'm on v2.2.8 Patch 1, and was just moved to a new server. Sending through Postmark worked fine before the move now I am getting errors:

Swift_TransportException: Email to example@example.com failed: Connection could not be established with host smtp.postmarkapp.com :stream_socket_client(): Unable to connect to tcp://smtp.postmarkapp.com:587 (Connection refused) src/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/StreamBuffer.php:261

This is what postmark...

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