Not receiving emails issue. Please help!

Not receiving emails issue. Please help!

I get this messages when I try to send email to my soho 



Mail Delivery Subsystem <mailer-daemon@googlemail.com>

8:33 AM (0 minutes ago)
to me
Error Icon

Address not found

Your message wasn't delivered to marco@ltrainvintage.combecause the address couldn't be found. Check for typos or unnecessary spaces and try again.
The response from the remote server was:

550 5.1.1 <marco@ltrainvintage.com>: Recipient address rejected: User unknown in virtual alias table


Final-Recipient: rfc822;  marco@ltrainvintage.com
Action: failed
Status: 5.1.1
Remote-MTA: dns;  smtp-fwd.wordpress.com. (192.0.97.133, the server for the
 domain  ltrainvintage.com.)
Diagnostic-Code: smtp; 550 5.1.1 < marco@ltrainvintage.com>: Recipient address rejected: User unknown in virtual alias table
Last-Attempt-Date: Wed, 15 Feb 2017 05:33:07 -0800 (PST)


---------- Forwarded message ----------
From: "M. Antonio Perez Del Cid" < a.marco.perez@gmail.com>
To:  marco@ltrainvintage.com
Cc: 
Date: Wed, 15 Feb 2017 08:33:06 -0500
Subject: Hello
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M. Antonio Perez Del Cid