mailx & "telnet localhost 25" syntax

[Eugene Vilensky]

On Thu, Feb 17, 2011 at 8:14 AM, sunhux G <sunhux at gmail.com> wrote:
> I recall seeing somewhere but I've lost the commands / syntax:
>
> I'm on a Linux box & would like to send a mail to another Linux box
> using IP address (ie in the format
> remote_recipient_id at IP_address_of_remote_box).

As Cameron points out, the domain name is an SMTP requirement.  Most
MTA will refuse to accept mail addressed to an IP address.