Mail domain report: hopin.com

SPF

pass

SPF record published

Found

Record: v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all
DNS lookups: 1 of 10
Void lookups: 0 of 2

Checks

✓ No deprecated ptr mechanism #1

No ptr mechanism found in SPF record.
✓ 1 of 10 DNS lookups #2

SPF record needs 1 DNS lookups (limit is 10).
✓ Ends with ~all #3

SPF record properly uses ~all to restrict unauthorized senders.
✓ Record published #6

SPF record exists for this domain.
✓ Single record #16

Exactly one SPF record is published.
✓ Valid syntax #25

All SPF mechanisms and modifiers are valid.
✓ No void lookups #26

All include/redirect targets exist.
✓ No overly broad IP ranges #27

All ip4/ip6 ranges are narrow enough.

DMARC

pass

p=reject (_dmarc.hopin.com)

Found

Record: v=DMARC1; p=reject; sp=reject; rua=mailto:dmarc_agg@vali.email,mailto:dmarc-report@hopin.com; ruf=mailto:dmarc-report@hopin.com; fo=1:s; rf=afrf
Found at: _dmarc.hopin.com
External report address: mailto:dmarc_agg@vali.email (authorized)

Tag	Value	Meaning
v	DMARC1	Version
p	reject	Policy
sp	reject	Subdomain policy
rua	mailto:dmarc_agg@vali.email,mailto:dmarc-report@hopin.com	Aggregate report addresses
ruf	mailto:dmarc-report@hopin.com	Failure report addresses
fo	1:s	Failure reporting options
rf	afrf	Failure report format

Checks

✓ Policy: reject #4

DMARC policy is set to 'reject', which provides the strongest protection against email spoofing.
✓ Record published #5

DMARC record exists for this domain.
✓ Valid syntax #17

DMARC record syntax is valid.
✓ Applies to 100% of mail #18

DMARC policy applies to all failing mail.
✓ Aggregate reports enabled #19

Aggregate reports are sent to: mailto:dmarc_agg@vali.email, mailto:dmarc-report@hopin.com
✓ Subdomain policy: reject #20

Subdomains are covered by policy 'reject'.
✓ External report addresses authorized #29

Report addresses in other domains have published their authorization.

DKIM

warn

No keys found under the checked selectors

Found

Selectors: None found
_domainkey: NOERROR

Checks

!

No key under common selectors

The _domainkey name exists but no DKIM key was found under the common selectors. Selectors are provider-specific; check yours with -selector.

#7

DNSSEC

warn

Not signed

Found

DNSKEY records: No (0)
DS at parent: No

Checks

!

Not enabled

DNSSEC is not enabled for this domain. Consider enabling DNSSEC to protect against DNS spoofing attacks.

#8

MX

pass

5 mail servers

Found

Priority	Host	Records	Reverse DNS
1	aspmx.l.google.com	A 142.251.127.26 AAAA 2a00:1450:4001:c21::1a	lcfrai-in-f26.1e100.net ✓ lcfrai-in-f26.1e100.net ✓
5	alt1.aspmx.l.google.com	A 142.250.147.27 AAAA 2a00:1450:4025:c01::1b	rd-in-f27.1e100.net ✓ rd-in-f27.1e100.net ✓
5	alt2.aspmx.l.google.com	A 172.253.152.26 AAAA 2a00:1450:4010:c22::1a	yulpptr-in-f26.1e100.net ✓ yulpptr-in-f26.1e100.net ✓
10	alt3.aspmx.l.google.com	A 192.179.20.26 AAAA 2404:6800:4000:1027::1b	ncboms-in-f26.1e100.net ✓ ncboms-in-f27.1e100.net ✓
10	alt4.aspmx.l.google.com	A 192.178.158.26 AAAA 2404:6800:4013:813::1a	lcdels-in-f26.1e100.net ✓ lcdels-in-f26.1e100.net ✓

Checks

✓ 5 MX records #9

Found 5 MX records for this domain.
✓ All hosts resolve #10

All MX records resolve to valid IP addresses.
✓ All hosts have IPv6 #11

All MX records resolve to IPv6 addresses.
✓ Redundant MX hosts #12

Found 5 MX records, which provides redundancy for email delivery.
✓ At most 5 MX records #13

Found 5 MX records, which is within the recommended range (1-5).
✓ No localhost targets #14

No MX records pointing to localhost found.
✓ No private IP addresses #15

No MX records resolving to private IP addresses found.
✓ No CNAME targets #22

No MX records point to a CNAME.
✓ Reverse DNS confirmed #30

All 10 MX addresss have a PTR record that resolves back to them.

TLS

fail

MTA-STS record without policy · TLS-RPT · DANE on 0 of 5 MX hosts

Found

MTA-STS record: v=STSv1; id=20190425085700
Policy URL: https://mta-sts.hopin.com/.well-known/mta-sts.txt
Policy error: Get "https://mta-sts.hopin.com/.well-known/mta-sts.txt": tls: failed to verify certificate: x509: certificate is valid for *.storage.googleapis.com, *.googleapis.com, commondatastorage.googleapis.com, *.commondatastorage.googleapis.com, storage.googleapis.com, storage-p2.googleapis.com, *.storage-p2.googleapis.com, storage.mtls.googleapis.com, *.appspot.com.storage.googleapis.com, *.content-storage.googleapis.com, *.content-storage-p2.googleapis.com, *.content-storage-upload.googleapis.com, *.content-storage-download.googleapis.com, *.storage-upload.googleapis.com, *.storage-download.googleapis.com, not mta-sts.hopin.com
TLS-RPT record: v=TLSRPTv1; rua=mailto:tls-report@hopin.to

DANE (TLSA records)

MX host	TLSA	DNSSEC
aspmx.l.google.com	none	-
alt1.aspmx.l.google.com	none	-
alt2.aspmx.l.google.com	none	-
alt3.aspmx.l.google.com	none	-
alt4.aspmx.l.google.com	none	-

Checks

✓ Record published #32

MTA-STS record found with id 20190425085700.
✗

Policy not reachable

The MTA-STS record exists but the policy could not be fetched, so senders ignore MTA-STS: Get "https://mta-sts.hopin.com/.well-known/mta-sts.txt": tls: failed to verify certificate: x509: certificate is valid for *.storage.googleapis.com, *.googleapis.com, commondatastorage.googleapis.com, *.commondatastorage.googleapis.com, storage.googleapis.com, storage-p2.googleapis.com, *.storage-p2.googleapis.com, storage.mtls.googleapis.com, *.appspot.com.storage.googleapis.com, *.content-storage.googleapis.com, *.content-storage-p2.googleapis.com, *.content-storage-upload.googleapis.com, *.content-storage-download.googleapis.com, *.storage-upload.googleapis.com, *.storage-download.googleapis.com, not mta-sts.hopin.com.

#33
✓ Reports enabled #35

TLS reports are sent to: mailto:tls-report@hopin.to
i

Not used

No MX host publishes TLSA records. DANE lets senders verify your mail server's certificate through DNSSEC; it requires DNSSEC on the MX host's zone.

#36

BIMI

info

No BIMI record

Checks

i

Not configured

BIMI shows your logo next to your mail in supporting mail clients. It requires DMARC enforcement.

#38