On 11/04/18 17:27, Mike Brudenell via Exim-users wrote: > a *helo_data* command within your Exim
> transport to set the HELO/EHLO string for each connection to, say, reflect
> the domain name of the sender of the outgoing message instead of the
> default action of always using the primary hostname.
That would be incorrect per standards. The HELO name should identify
the sending system.
--
Jeremy