DomainKeys and DKIM neutral, messages not signed

So hey there! The title says it all, here’s my domain: insight-os.com.br

DomainKeys Identified Email is enabled and the keys generated, but I still get neutral in check-auth@verifier.port25.com

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Summary of Results

SPF check: pass
DomainKeys check: neutral
DKIM check: neutral
Sender-ID check: pass
SpamAssassin check: ham

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Details:

HELO hostname: node.insight-os.com.br
Source IP: 104.223.78.144
mail-from: contact@insight-os.com.br


SPF check details:

Result: pass
ID(s) verified: smtp.mailfrom=contact@insight-os.com.br
DNS record(s):
insight-os.com.br. SPF (no records)
insight-os.com.br. 38400 IN TXT “v=spf1 a mx a:insight-os.com.br ip4:104.223.78.144 ?all”
insight-os.com.br. 38400 IN A 104.223.78.144


DomainKeys check details:

Result: neutral (message not signed)
ID(s) verified: header.From=contact@insight-os.com.br
DNS record(s):


DKIM check details:

Result: neutral (message not signed)
ID(s) verified:

NOTE: DKIM checking has been performed based on the latest DKIM specs
(RFC 4871 or draft-ietf-dkim-base-10) and verification may fail for
older versions. If you are using Port25’s PowerMTA, you need to use
version 3.2r11 or later to get a compatible version of DKIM.


Sender-ID check details:

Result: pass
ID(s) verified: header.From=contact@insight-os.com.br
DNS record(s):
insight-os.com.br. SPF (no records)
insight-os.com.br. 38400 IN TXT “v=spf1 a mx a:insight-os.com.br ip4:104.223.78.144 ?all”
insight-os.com.br. 38400 IN A 104.223.78.144


SpamAssassin check details:

SpamAssassin v3.4.0 (2014-02-07)

Result: ham (0.7 points, 5.0 required)

pts rule name description


1.4 RCVD_IN_BRBL_LASTEXT RBL: No description available.
[104.223.78.144 listed in bb.barracudacentral.org]
-0.0 SPF_PASS SPF: sender matches SPF record
-0.2 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain
-0.5 BAYES_05 BODY: Bayes spam probability is 1 to 5%
[score: 0.0118]

Eknos :slight_smile: For each virtual server(s) sending or receiving emails. Using Virtualmin check if both the DNS and Mail features are activated. If not activate them. That will automatically add DKIM signatures.

Only virtual servers that have both the DNS and email features enabled will have DKIM activated, as the mail server needs to be setup to use a private signing key whose corresponding public key is added to DNS.
Source at https://www.virtualmin.com/documentation/email/dkim