hb.by

01Overview 02DNS 03WHOIS 04Subdomains 05Email 06TLS

Checking SPF, DKIM, and DMARC

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Tools

DNS Lookup
WHOIS Lookup
RDAP Lookup
Subdomain Finder
Email Security Check
SSL and TLS Certificate Checker

digga is open source under AGPL 3.0.

GitHub

Checking SPF, DKIM, and DMARC

Email authentication

The basics are in place but can be hardened.

2Pass
1Warning
0Fail
3Not set

SPF

Pass

Authorizes which servers may send mail for the domain

SPF is published and within limits.

Policy: -all
DNS lookups: 3 / 10

Ends in -all (hardfail): unauthorized senders are rejected.
Uses 3 of 10 allowed DNS lookups.

v=spf1 ip4:134.17.89.171 ip4:178.124.131.227 ip4:178.124.131.229 ip4:134.17.17.17 ip4:134.17.17.10 ip4:134.17.94.46 ip4:178.124.141.130 ip4:178.124.141.131 ip4:178.124.141.132 ip4:178.124.141.133 ip4:178.124.141.134 ip4:178.124.141.135 ip4:178.124.141.136 ip4:178.124.141.142 ip4:178.124.129.150 ip4:178.124.129.147 ip4:178.124.129.153 ip4:178.124.129.158 ip4:178.124.129.148 ip4:178.124.141.140 ip4:176.60.210.111 ip4:176.60.210.112 ip4:176.60.210.114 ip4:176.60.210.120 ip4:178.124.131.232 include:amazonses.com include:mxsmtp.sendpulse.com include:spf.unisender.com -all

DKIM

Pass

Cryptographically signs outgoing mail (best-effort selector probe)

DKIM key published for 1 known selector.

Selectors: google

Found a DKIM key at google._domainkey.hb.by

DMARC

Warning

Tells receivers what to do with mail that fails SPF and DKIM

DMARC is published but not fully enforcing.

Policy: p=quarantine
Coverage: 1%

Policy p=quarantine: failing mail is sent to spam.
pct=1: the policy only applies to 1% of mail.
Aggregate reports (rua) are configured.

v=DMARC1; p=quarantine; pct=1; rua=mailto:[email protected]

MTA-STS

Not set

Enforces TLS for inbound mail and prevents downgrade attacks

No MTA-STS policy. Inbound mail can be delivered without TLS.

TLS-RPT

Not set

Receives reports about TLS delivery failures

No TLS-RPT record. You get no reports about failed TLS delivery.

BIMI

Not set

Displays your verified brand logo in supporting inboxes

No BIMI record. No brand logo is published for inboxes.

Checks query live DNS over Cloudflare and the public MTA-STS policy endpoint. DKIM selectors cannot be listed from DNS, so DKIM detection probes common provider selectors only.