[exim] closed connection in response to HELO

hi,
I have found this error message in mainlog:

Remote host ifm-relay.inet.it [213.92.5.57]
closed connection in response to HELO gss3000.cadfe.it

What the cause an there is a method to solve it?

Many thanks.
Regards.

_________________________________________________
Silvano Malaguti
________________________________________________
Punto Net S.r.l Socio Unico
Professione Internet dal 1995
Via Orsatti, 8 - 44038 - Pontelagoscuro - Ferrara - Italy (UE)
Centro Servizi Ferrara: Tel: 0532.490.150 Fax: 0532.490.101