spam score for automated email sent via wordpress 4.3

Problems that need fixing according to [login to view URL]: IP used in the HELO request The hostname should be a domain name, not an IP address Message only has text/html MIME parts You should also include a text version of your message (text/plain) Received: HELO and IP do not match, but should Your domains are not aligned. We can't check DMARC. A DMARC policy allows a sender to indicate that their emails are protected by SPF and/or DKIM, and give instruction if neither of those authentication methods passes. Please be sure you have a DKIM and SPF set before using DMARC. Before using DMARC, you should make sure the domains used in the Envelope From (e.g., Return-Path or Mail-From), the "Friendly" From (i.e., "Header" From) and the d=domain in the DKIM-Signature are the same DMARC DNS entry found for the domain [login to view URL]: "v=DMARC1; p=none" Verification details: [login to view URL]; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=[login to view URL] header.i=@[login to view URL] header.b=DwpJcpIV; dkim-atps=neutral [login to view URL]; dmarc=none header.from=[login to view URL] [login to view URL]; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=[login to view URL] header.i=@[login to view URL] header.b=DwpJcpIV; dkim-atps=neutral spf=none (sender IP is ) smtp.mailfrom=admin@[login to view URL]; From Domain: [login to view URL] DKIM Domain: [login to view URL] Your reverse DNS does not match with your sending domain. Reverse DNS lookup or reverse DNS resolution (rDNS) is the determination of a domain name that is associated with a given IP address. Some companies such as AOL will reject any message sent from a server without rDNS, so you must ensure that you have one. You cannot associate more than one domain name with a single IP address. Your IP address [login to view URL] is associated with the domain mail-sy3aus01hn0244.outbound.protection.outlook.com. Nevertheless your message appears to be sent from AUS01-SY3-obe.outbound.protection.outlook.com. You may want to change your pointer (PTR type) DNS record and the host name of your server to the same value. Here are the tested values for this check: IP: [login to view URL] HELO: [login to view URL] rDNS: [login to view URL]