Mail domain report: silverchair.com

SPF

warn

SPF record published

Found

Record: v=spf1 include:spf.protection.outlook.com include:_spf.intacct.com include:servers.mcsv.net include:_spf.silverchair.com include:_spf.salesforce.com ip4:216.30.180.251 -all
DNS lookups: 7 of 10
Void lookups: 0 of 2
Problem: include:_u.silverchair.com._spf.dmarcld.com could not be resolved: DNS query for _u.silverchair.com._spf.dmarcld.com failed: read udp 46.225.38.91:60013->8.8.8.8:53: i/o timeout

Checks

✓ No deprecated ptr mechanism #1

No ptr mechanism found in SPF record.
!

7 of 10 DNS lookups, with problems

SPF record needs 7 DNS lookups (limit is 10). Problems found: include:_u.silverchair.com._spf.dmarcld.com could not be resolved: DNS query for _u.silverchair.com._spf.dmarcld.com failed: read udp 46.225.38.91:60013->8.8.8.8:53: i/o timeout.

#2
✓ 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

fail

p=none (_dmarc.silverchair.com)

Found

Record: v=DMARC1; p=none; rua=mailto:6398dbbea9f9d@ag.dmarcly.com; ruf=mailto:6398dbbea9f9d@fo.dmarcly.com; sp=none;
Found at: _dmarc.silverchair.com
External report address: mailto:6398dbbea9f9d@ag.dmarcly.com (authorized)
External report address: mailto:6398dbbea9f9d@fo.dmarcly.com (authorized)

Tag	Value	Meaning
v	DMARC1	Version
p	none	Policy
sp	none	Subdomain policy
rua	mailto:6398dbbea9f9d@ag.dmarcly.com	Aggregate report addresses
ruf	mailto:6398dbbea9f9d@fo.dmarcly.com	Failure report addresses

Checks

✗

Policy: none (monitoring only)

DMARC policy is set to 'none', which only monitors but doesn't protect against spoofing. Consider upgrading to 'quarantine' or ideally 'reject'.

#4
✓ Record published #5

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

DMARC record syntax is valid.
✓ Aggregate reports enabled #19

Aggregate reports are sent to: mailto:6398dbbea9f9d@ag.dmarcly.com
✓ External report addresses authorized #29

Report addresses in other domains have published their authorization.

DKIM

warn

Selectors: k1, selector1, s1, s2

Found

Selectors: k1, selector1, s1, s2
_domainkey: NXDOMAIN

Selector	Key	Flags
k1	RSA 1024 bits
selector1	RSA 1024 bits
s1	RSA 2048 bits
s2	RSA 1024 bits

Checks

✓ Keys found: k1, selector1, s1, s2 #7

DKIM keys found for this domain with selectors: k1, selector1, s1, s2
!

1024-bit DKIM key

1024-bit RSA keys are the minimum and are considered weak today: k1 (1024 bits), selector1 (1024 bits), s2 (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

1 mail server

Found

Priority	Host	Records	Reverse DNS
0	silverchair-com.mail.protection.outlook.com	A 52.101.41.180 A 52.101.194.158 A 52.101.60.71 A 52.101.40.53 AAAA 2a01:111:f403:c946::18 AAAA 2a01:111:f403:c927::1 AAAA 2a01:111:f403:f802::2 AAAA 2a01:111:f403:c918::3	mail-byapr04cu00204.inbound.protection.outlook.com ✓ mail-ch3pr04cu00106.inbound.protection.outlook.com ✓ mail-bn0pr02cu00307.inbound.protection.outlook.com ✓ mail-cy3pr05cu00205.inbound.protection.outlook.com ✓ mail-ch5pr04cu00200.inbound.protection.outlook.com ✓ mail-bn8pr05cu00301.inbound.protection.outlook.com ✓ mail-sj2pr05cu00202.inbound.protection.outlook.com ✓ mail-byapr03cu00203.inbound.protection.outlook.com ✓

Checks

✓ 1 MX record #9

Found 1 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.
!

Single MX host, no backup

Only one MX record found. For better email reliability, consider adding at least one backup MX server.

#12
✓ At most 5 MX records #13

Found 1 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 8 MX addresss have a PTR record that resolves back to them.

TLS

warn

no MTA-STS · no TLS-RPT · DANE on 0 of 1 MX hosts

Found

DANE (TLSA records)

MX host	TLSA	DNSSEC
silverchair-com.mail.protection.outlook.com	none	-

Checks

!

Not configured

MTA-STS is not configured, so other mail servers fall back to unencrypted delivery when TLS fails or is stripped by an attacker. Publish a _mta-sts TXT record and a policy at https://mta-sts.<domain>/.well-known/mta-sts.txt.

#32
i

Not configured

TLS-RPT lets senders report TLS delivery problems to you. It is most useful together with MTA-STS or DANE.

#35
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