v2digga

Apex, subdomain, or URL. We figure it out.

Results for

sainsburys.co.uk

Email authentication

The basics are in place but can be hardened.

  • 3Pass
  • 2Warning
  • 0Fail
  • 1Not set

SPF

Warning

Authorizes which servers may send mail for the domain

SPF is published but could be tightened.

Policy
~all
DNS lookups
8 / 10
  • Ends in ~all (softfail): unauthorized senders are marked, not rejected.
  • Uses 8 of 10 allowed DNS lookups. Close to the limit.
v=spf1 include:spf-0059c002.pphosted.com include:mail.zendesk.com include:spf_c.oraclecloud.com include:spf-000ff402.pphosted.com a:smtp.info-exchange.com include:_spf.psm.knowbe4.com ~all

DKIM

Pass

Cryptographically signs outgoing mail (best-effort selector probe)

DKIM key published for 4 known selectors.

Selectors
s1, s2, k1, mandrill
  • Found a DKIM key at s1._domainkey.sainsburys.co.uk
  • Found a DKIM key at s2._domainkey.sainsburys.co.uk
  • Found a DKIM key at k1._domainkey.sainsburys.co.uk
  • Found a DKIM key at mandrill._domainkey.sainsburys.co.uk

DMARC

Pass

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

DMARC is enforced.

Policy
p=reject
Coverage
100%
  • Policy p=reject: failing mail is rejected outright.
  • Aggregate reports (rua) are configured.
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; aspf=r; fo=1

MTA-STS

Warning

Enforces TLS for inbound mail and prevents downgrade attacks

MTA-STS is published but not enforcing.

  • The DNS record exists but the policy file could not be read.
v=STSv1; id=2021010100

TLS-RPT

Not set

Receives reports about TLS delivery failures

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

BIMI

Pass

Displays your verified brand logo in supporting inboxes

BIMI is published.

Logo
https://vmc.digicert.eu/0074f68e-d8f5-4a60-b394-c0b62bf61d5a.svg
VMC
https://vmc.digicert.eu/0074f68e-d8f5-4a60-b394-c0b62bf61d5a.pem
  • A logo (l=) is published.
  • A Verified Mark Certificate (a=) is referenced.
v=BIMI1;l=https://vmc.digicert.eu/0074f68e-d8f5-4a60-b394-c0b62bf61d5a.svg;a=https://vmc.digicert.eu/0074f68e-d8f5-4a60-b394-c0b62bf61d5a.pem

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.