MUA / SMTP client / script to send email via a mail relay server

[sunhux G]

If I login directly to that Postfix server using that Unix id mail at yy.zz ,
I was able to use mutt to send out an email (& the email arrives at
the destination address which is my corporate email address).

I've tried using root login to that Postfix server & it could send mails
successfully using mutt as well but when root is used for 'RCPT TO: ',
it was rejected too.

What can I do next?

On Tue, Nov 29, 2011 at 4:53 PM, Daniel Carrillo
<daniel.carrillo at gmail.com> wrote:
> 2011/11/29 sunhux G <sunhux at gmail.com>:
>> Need to clarify on Daniel's script :
>> Understand Daniel has tested it but I got an issue with RCPT TO:
>>
>>
>> I login directly to the Postfix server & test it:
>> # telnet localhost 25
>> 220 smtp.yy.zz ESMTP
>> helo me
>> 250 servernm.yy.zz
>> MAIL FROM: <fromsms1 at yy.zz>
>> 250 Ok
>> RCPT TO: <mail at yy.zz>
>> 550 <mail at yy.zz>: Recipient address rejected: User unknown in relay
>> recipient table
>
> MTA is rejecting that user.