whc.ca

Email authentication

The basics are in place but can be hardened.

4Pass
2Warning
0Fail
0Not set

SPF

Warning

Authorizes which servers may send mail for the domain

SPF is published but could be tightened.

Policy: -all
DNS lookups: 9 / 10

Ends in -all (hardfail): unauthorized senders are rejected.
Uses 9 of 10 allowed DNS lookups. Close to the limit.

v=spf1 mx ip4:158.69.149.142 ip4:192.99.8.11 ip4:74.120.223.2 ip4:158.69.149.143 ip4:158.69.133.129 ip4:158.69.149.140 ip4:54.39.46.234 ip4:192.99.232.84 ip4:173.209.55.197 ip4:192.95.54.146 ip4:158.69.148.219 ip4:158.69.148.217 include:_spf.domains.whc.ca include:_spf.google.com include:se.web-dns1.com include:spf.protection.outlook.com include:zcsend.ca include:ca.zeptomail.net -all

DKIM

Pass

Cryptographically signs outgoing mail (best-effort selector probe)

DKIM key published for 4 known selectors.

Selectors: default, google, selector1, selector2

Found a DKIM key at default._domainkey.whc.ca
Found a DKIM key at google._domainkey.whc.ca
Found a DKIM key at selector1._domainkey.whc.ca
Found a DKIM key at selector2._domainkey.whc.ca

DMARC

Pass

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

DMARC is enforced.

Policy: p=quarantine
Subdomains: sp=quarantine
Coverage: 100%

Policy p=quarantine: failing mail is sent to spam.
Aggregate reports (rua) are configured.

v=DMARC1;p=quarantine;sp=quarantine;rf=afrf;pct=100;ri=86400;fo=1;adkim=s;rua=mailto:[email protected],mailto:[email protected];ruf=mailto:[email protected],mailto:[email protected];

MTA-STS

Warning

Enforces TLS for inbound mail and prevents downgrade attacks

MTA-STS is published but not enforcing.

Mode: testing
Max age: 86400s

Policy mode is testing: failures are reported but mail is still delivered.

v=STSv1; id=20250820

TLS-RPT

Pass

Receives reports about TLS delivery failures

TLS reporting is configured.

Reports to: mailto:[email protected]

TLS delivery failure reports are being collected.

v=TLSRPTv1; rua=mailto:[email protected];

BIMI

Pass

Displays your verified brand logo in supporting inboxes

BIMI is published.

Logo: https://whc.ca/.well-known/bimi.svg
VMC: https://whc.ca/.well-known/bimi.pem

A logo (l=) is published.
A Verified Mark Certificate (a=) is referenced.

v=BIMI1;l=https://whc.ca/.well-known/bimi.svg;a=https://whc.ca/.well-known/bimi.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.