Mail domain report: italki.com

SPF

pass

SPF record published

Found

Record: v=spf1 include:_spf.google.com include:mail.zendesk.com include:amazonses.com -all
DNS lookups: 3 of 10
Void lookups: 0 of 2

Checks

✓ No deprecated ptr mechanism #1

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

SPF record needs 3 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.italki.com)

Found

Record: v=DMARC1;p=reject;sp=reject;pct=100;rua=mailto:qiqfvhrc@ag.ap.dmarcian.com,mailto:rua@godmarc.io; ruf=mailto:ruf@godmarc.io;fo=1;aspf=r;adkim=r
Found at: _dmarc.italki.com
External report address: mailto:qiqfvhrc@ag.ap.dmarcian.com (authorized)
External report address: mailto:rua@godmarc.io (authorized)
External report address: mailto:ruf@godmarc.io (authorized)

Tag	Value	Meaning
v	DMARC1	Version
p	reject	Policy
sp	reject	Subdomain policy
pct	100	Percentage of mail the policy applies to
rua	mailto:qiqfvhrc@ag.ap.dmarcian.com,mailto:rua@godmarc.io	Aggregate report addresses
ruf	mailto:ruf@godmarc.io	Failure report addresses
adkim	r	DKIM alignment (r = relaxed, s = strict)
aspf	r	SPF alignment (r = relaxed, s = strict)
fo	1	Failure reporting options

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:qiqfvhrc@ag.ap.dmarcian.com, mailto:rua@godmarc.io
✓ 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

Selectors: mail, google

Found

Selectors: mail, google
_domainkey: NXDOMAIN

Selector	Key	Flags
mail	RSA 1024 bits
google	RSA 2048 bits

Checks

✓ Keys found: mail, google #7

DKIM keys found for this domain with selectors: mail, google
!

1024-bit DKIM key

1024-bit RSA keys are the minimum and are considered weak today: mail (1024 bits). Rotate to a 2048-bit key.

#23
✓ No problematic flags #24

No keys in test mode, revoked, or limited to SHA-1.

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

warn

8 mail servers

Found

Priority	Host	Records	Reverse DNS
1	aspmx.l.google.com	A 142.251.127.26 AAAA 2a00:1450:4001:c21::1b	lcfrai-in-f26.1e100.net ✓ lcfrai-in-f27.1e100.net ✓
5	alt1.aspmx.l.google.com	A 142.250.147.26 AAAA 2a00:1450:4025:c01::1a	rd-in-f26.1e100.net ✓ rd-in-f26.1e100.net ✓
5	alt2.aspmx.l.google.com	A 172.253.152.26 AAAA 2a00:1450:4010:c22::1b	yulpptr-in-f26.1e100.net ✓ yulpptr-in-f27.1e100.net ✓
40	aspmx2.googlemail.com	A 142.250.147.26 AAAA 2a00:1450:4025:c01::1a	rd-in-f26.1e100.net ✓ rd-in-f26.1e100.net ✓
50	aspmx3.googlemail.com	A 172.253.152.27 AAAA 2a00:1450:4010:c22::1a	yulpptr-in-f27.1e100.net ✓ yulpptr-in-f26.1e100.net ✓
60	inbound-smtp.us-west-2.amazonaws.com	A 35.161.157.106 A 54.188.121.70 A 52.13.163.116 A 52.43.162.244	ec2-35-161-157-106.us-west-2.compute.amazonaws.com ✓ ec2-54-188-121-70.us-west-2.compute.amazonaws.com ✓ ec2-52-13-163-116.us-west-2.compute.amazonaws.com ✓ ec2-52-43-162-244.us-west-2.compute.amazonaws.com ✓
60	us.italki.com	CNAME italki.com A 44.239.186.31 A 34.208.219.106 A 44.232.101.110	ec2-44-239-186-31.us-west-2.compute.amazonaws.com ✓ ec2-34-208-219-106.us-west-2.compute.amazonaws.com ✓ ec2-44-232-101-110.us-west-2.compute.amazonaws.com ✓
70	mail.italki.com	(does not resolve)

Checks

✓ 8 MX records #9

Found 8 MX records for this domain.
!

Hosts without IP addresses

The following MX hosts could not be resolved to IP addresses: mail.italki.com

#10
!

Hosts without IPv6

The following MX hosts could not be resolved to IPv6 addresses: inbound-smtp.us-west-2.amazonaws.com, us.italki.com, mail.italki.com

#11
✓ Redundant MX hosts #12

Found 8 MX records, which provides redundancy for email delivery.
!

More than 5 MX records

Found 8 MX records, which is more than the recommended maximum of 5. Too many MX records may indicate a misconfiguration.

#13
✓ 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.
!

Hosts are CNAMEs

MX records must point to a host name with A/AAAA records, not to a CNAME: us.italki.com -> italki.com

#22
✓ Reverse DNS confirmed #30

All 17 MX addresss have a PTR record that resolves back to them.

TLS

info

MTA-STS enforce · TLS-RPT · DANE on 0 of 8 MX hosts

Found

MTA-STS record: v=STSv1; id=20251119000000
Policy URL: https://mta-sts.italki.com/.well-known/mta-sts.txt
Mode: enforce
Allowed MX: *.italki.com, *.l.google.com, *.aspmx.l.google.com, *.googlemail.com, *.mailgun.org, inbound-smtp.us-west-2.amazonaws.com
Max age: 604800 seconds
TLS-RPT record: v=TLSRPTv1; rua=mailto:developer@italki.com

DANE (TLSA records)

MX host	TLSA	DNSSEC
aspmx.l.google.com	none	-
alt1.aspmx.l.google.com	none	-
alt2.aspmx.l.google.com	none	-
aspmx2.googlemail.com	none	-
aspmx3.googlemail.com	none	-
inbound-smtp.us-west-2.amazonaws.com	none	-
us.italki.com	none	-
mail.italki.com	none	-

Checks

✓ Record published #32

MTA-STS record found with id 20251119000000.
✓ Policy enforced #33

The MTA-STS policy is enforced and cached for 168h0m0s.
✓ All MX hosts covered #34

Every MX host matches an mx: line of the MTA-STS policy.
✓ Reports enabled #35

TLS reports are sent to: mailto:developer@italki.com
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