FYI,

I'm getting this from Google when I try to send to the info mailbox:
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From: Mail Delivery Subsystem [mailto:[email protected]]
Sent: Tuesday, April 21, 2015 9:19 AM
Subject: Delivery Status Notification (Failure)

Delivery to the following recipient failed permanently:

[email protected]

Technical details of permanent failure:
Message rejected by Google Groups. Please visit http://mail.google.com/support/bin/answ ... wer=188131 to review our Bulk Email Senders Guidelines.
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I purchased NoesisGUI from the Unity Asset store in May of 2014, and just was trying to send an invoice number to become verified.

It seems that your email is being blocked by Google. You should probably contact them to analyze the issue.

We have written you an email right now. Please, let us know if you receive it.

Thanks!