[exim] TLS error on connection

Hi

Keep getting this message from this one MTA

TLS error on connection from removed.co.uk (mail.removed.co.uk)
[1.2.3.4] (gnutls_handshake): A TLS packet with unexpected length was
received.

Im running Exim 4.69-6 (debian testing).

I cant for the likes of me understand whats wrong or know why. And its
only this one sender.

Kind Regards
Brent Clark