Hi all 
I got Directadmin installed on a VPS server with multi domains set on the same IP.
Yesterday i just saw that there was a problem when i send e-mail using any mail address i create via directadmin panel and for any domain.
After looking for some reasons, i noticed some problems like DKIM not activated or SPF not correctly set on DNS. I manage to do those things but the problem is still not fixed.
When i send e-mail to any ISP address it works correctly, but when it's on GMAIL or OUTLOOK/HOTMAIL, e-mail directly goes to SPAM.
Seems like it's related to the HELO config. I looked after some fixes but it's a little blurred for me.
So here is an excerpt of the e-mail source on GMAIL (same error on OUTLOOK) :
And here is an excerpt from mail-tester.com
Any help would be appreciate.
Thanks.

I got Directadmin installed on a VPS server with multi domains set on the same IP.
Yesterday i just saw that there was a problem when i send e-mail using any mail address i create via directadmin panel and for any domain.
After looking for some reasons, i noticed some problems like DKIM not activated or SPF not correctly set on DNS. I manage to do those things but the problem is still not fixed.
When i send e-mail to any ISP address it works correctly, but when it's on GMAIL or OUTLOOK/HOTMAIL, e-mail directly goes to SPAM.
Seems like it's related to the HELO config. I looked after some fixes but it's a little blurred for me.
So here is an excerpt of the e-mail source on GMAIL (same error on OUTLOOK) :
Received: by 10.194.31.229 with SMTP id d5csp232173wji;
Wed, 4 Feb 2015 01:59:06 -0800 (PST)
X-Received: by 10.180.75.80 with SMTP id a16mr25350470wiw.3.1423043946695;
Wed, 04 Feb 2015 01:59:06 -0800 (PST)
Return-Path: <[email protected]>
Received: from ns313xxx.ip-1xx-xx5-xx1.eu ([2001:41d0:2:a835::])
by mx.google.com with ESMTPS id e10si13911527wib.96.2015.02.04.01.59.06
for <[email protected]>
(version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128);
Wed, 04 Feb 2015 01:59:06 -0800 (PST)
Received-SPF: none (google.com: [email protected] does not designate permitted sender hosts) client-ip=2001:xxx:2:axx5::;
Authentication-Results: mx.google.com;
spf=none (google.com: [email protected] does not designate permitted sender hosts) [email protected]
Received: from thedomain by ns313xxx.ip-1xx-xx5-xx1.eu with local (Exim 4.76)
(envelope-from <[email protected]>)
And here is an excerpt from mail-tester.com
SpamAssassin think you could do better
-2.7 FH_HELO_ALMOST_IP Helo is almost an IP addr.
Any help would be appreciate.
Thanks.