I try send email from my personal gmail account to muhaimin@utamicoffee.com.
Failed many times, I got these message instead

Delivery to the following recipient failed permanently:

      muhaimin@utamicoffee.com

Technical details of permanent failure:
Google tried to deliver your message, but it was rejected by the server for the recipient domain utamicoffee.com  by  aspmx.l.google.com . [2607:f8b0:4002:c08::1b].

The error that the other server returned was:
550-5.1.1 The email account that you tried to reach does not exist. Please try
550-5.1.1 double-checking the recipient's email address for typos or
550-5.1.1 unnecessary spaces. Learn more at
550 5.1.1   https://support.google.com/mail/answer/6596  o12si4149624ybg.51 - gsmtp


----- Original message -----

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         OFcQ==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d= 1e100.net ; s=20130820;
        h=x-gm-message-state:mime- version:from:date:message-id: subject:to;
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         5rOg==
X-Gm-Message-State: AOPr4FX2sSdqYsbXj4mjDllZOtcl5h 2pvuTdqwJngkrlLtI43sriQ6+ fMmnhZwjk4Jf+5bwfXIkl+ r6hgZb18g==
X-Received: by 10.176.1.240 with SMTP id 103mr12394100ual.46. 1462519348213;
 Fri, 06 May 2016 00:22:28 -0700 (PDT)
MIME-Version: 1.0
Received: by 10.31.202.134 with HTTP; Fri, 6 May 2016 00:22:08 -0700 (PDT)
From: mohd muhaimin < muhaimin86@gmail.com >
Date: Fri, 6 May 2016 15:22:08 +0800
Message-ID: < CACLVJtNptRGdALu2jPSKXDX17EODA UYaMVHZNhNfEoa6F78= jA@mail.gmail.com >
Subject: test 3
To: Mohd Muhaimin < muhaimin@utamicoffee.com >
Content-Type: multipart/alternative; boundary= 001a113cfa503a63360532275229