See below (1).
I was testing if people in need can contact tech people 
Can the email at the forum footer and everywhere else mentioned be replaced with a working email?
Merci
(1)
Delivery to the following recipient failed permanently:
supportreddcoin.com
Technical details of permanent failure:
Google tried to deliver your message, but it was rejected by the server for the recipient domain reddcoin.com
by mxa.mailgun.org
. [104.130.177.23].
The error that the other server returned was:
550 5.1.0 Recipient rejected: <supportreddcoin.com>
----- Original message -----
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
d=gmail.com
; s=20120113;
h=mime-version:date:message-id:subject:from:to:content-type;
bh=vMuBD6FHv87wIe7NjK07Y5FPUgkSlHQGtmGDzrRQ5lk=;
b=jVpXMwjRA6mAxNxuj0uZnxxKfbX21RsO00H5XM3XHc/w7fmr5TX4M7FRY+QiOQg4js
IbQcM/osW8hl8ItaSO0bHaE2eQkqkSvdLTsI4Xc65V6VTivkV6fnxwtDHgHYJtKhP6S9
lQ3La+AclHL24sRqqmPr7MEd7NiyRImo6/3Ci3rFEZdQidypN9nSx29rLa3yXii+h4Lu
ZMO92HdEC5qBcC88MsMLhpGv3j58J1WRQViZfu73cdYY4GT6pr5pSuwmxtw1MnKkDCuM
FXsUCaYbNDaMCS7Sun627LPFnODIAzQgzUESELFxk7zpW6hWm9j6XQT47LY1ElulWOSz
EZzA==
MIME-Version: 1.0
X-Received: by 10.107.185.7 with SMTP id j7mr47193200iof.114.1451662772014;
Fri, 01 Jan 2016 07:39:32 -0800 (PST)
Received: by 10.107.189.70 with HTTP; Fri, 1 Jan 2016 07:39:31 -0800 (PST)
Date: Fri, 1 Jan 2016 16:39:31 +0100
Message-ID: <CAD3HTddKMFX8Ys9fntzw7JzJkYhrOuTSyZBN7yr0XF7eDQnPzgmail.gmail.com>
Subject: does this email still work ?
From: Erkan who_deleted_his_email_here
To: supportreddcoin.com
Content-Type: multipart/alternative; boundary=94eb2c06d0fadc12d70528479342