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docusign.com

Receivers are told to reject mail that fails authentication for this domain.

Enforced

Receivers are told to reject mail that fails authentication for this domain. Keep watching aggregate reports so a new sending service does not silently start failing.

Score held up: DMARC is enforcing at p=reject, so nobody else can send as this domain. That is the hard part, and it is done. What is left below is about your own mail arriving, not about anyone spoofing you.

132 DNS queries · 2288 ms

Fix these first
  1. 1
    Selector 'mandrill' uses a 1024-bit RSA key
    Rotate to 2048-bit at your next key rotation.
  2. 2
    Selector 's2' uses a 1024-bit RSA key
    Rotate to 2048-bit at your next key rotation.
  3. 3
    Selector 'smtpapi' uses a 1024-bit RSA key
    Rotate to 2048-bit at your next key rotation.
  4. 4
    Selector 'mailo' uses a 1024-bit RSA key
    Rotate to 2048-bit at your next key rotation.

Identity ·Sending services detected

Read from your SPF includes and MX hosts, then checked for a published DKIM key.

Google WorkspaceSPF include:_spf.google.comkey published · google
ProofpointMX mxa-00567a01.gslb.pphosted.com · MX mxb-00567a01.gslb.pphosted.com

Identity ·DMARC

v=DMARC1; p=reject; sp=reject; adkim=r; aspf=r; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
Policy
reject
Coverage
100%
Alignment
dkim=r spf=r

Identity ·DKIM

111 selectors probed

googleGoogle WorkspaceRSA 2048
mandrillMailchimp TransactionalRSA 1024
s1SendGridRSA 2048
s2SendGridRSA 1024
smtpapiSendGridRSA 1024
mailoMailgunRSA 1024
m1MarketoRSA 1024

Identity ·SPF

Worst-case evaluation across every include.

v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ip4:205.220.176.129 ip4:205.220.164.129 ip4:205.220.166.129 ip4:205.220.177.61 include:_spf.google.com -all
DNS lookup budget2 / 10
  • include:_spf.google.com

Findings (9)

MediumSelector 'mandrill' uses a 1024-bit RSA key›

1024-bit is the RFC 8301 floor, not a good target. 2048-bit is the current recommendation and is universally supported.

What to do

Rotate to 2048-bit at your next key rotation.

RFC 8301

MediumSelector 's2' uses a 1024-bit RSA key›

1024-bit is the RFC 8301 floor, not a good target. 2048-bit is the current recommendation and is universally supported.

What to do

Rotate to 2048-bit at your next key rotation.

RFC 8301

MediumSelector 'smtpapi' uses a 1024-bit RSA key›

1024-bit is the RFC 8301 floor, not a good target. 2048-bit is the current recommendation and is universally supported.

What to do

Rotate to 2048-bit at your next key rotation.

RFC 8301

MediumSelector 'mailo' uses a 1024-bit RSA key›

1024-bit is the RFC 8301 floor, not a good target. 2048-bit is the current recommendation and is universally supported.

What to do

Rotate to 2048-bit at your next key rotation.

RFC 8301

MediumSelector 'm1' uses a 1024-bit RSA key›

1024-bit is the RFC 8301 floor, not a good target. 2048-bit is the current recommendation and is universally supported.

What to do

Rotate to 2048-bit at your next key rotation.

RFC 8301

LowNo MTA-STS policy›

Without MTA-STS, mail to your domain can be downgraded to plaintext by an active network attacker, because SMTP's STARTTLS is opportunistic by default.

What to do

Publish a TXT record at _mta-sts.docusign.com and a policy file at https://mta-sts.docusign.com/.well-known/mta-sts.txt.

RFC 8461

LowNo TLS-RPT record›

Sending servers have no address to report TLS failures on mail to your domain, so transport problems stay invisible to you until someone complains.

What to do

Publish 'v=TLSRPTv1; rua=mailto:<address>' at _smtp._tls.docusign.com.

RFC 8460

LowNo CAA record›

Any certificate authority in the world may issue a certificate for this domain. A mis-issued certificate can be used to intercept mail on the wire and to impersonate your domain over HTTPS.

What to do

Publish a CAA record naming your certificate authority, for example: 0 issue "letsencrypt.org"

RFC 8659

InfoEligible for DANE›

Your zone is signed, which is the hard prerequisite for DANE. Publishing TLSA records for your MX hosts would let sending servers pin your certificates without relying on the public CA system.

What to do

Publish a TLSA record at _25._tcp.<each MX host> matching your MX certificate.

RFC 7672

Show 12 passing checks
PassAggregate reporting is configured›

Aggregate reports are requested at: [email protected].

PassExternal report destination emaildefense.proofpoint.com is correctly authorised›

Authorised by docusign.com._report._dmarc.emaildefense.proofpoint.com

PassExternal report destination emaildefense.proofpoint.com is correctly authorised›

Authorised by docusign.com._report._dmarc.emaildefense.proofpoint.com

PassDMARC policy is p=reject›

Mail failing authentication is rejected outright. This is the correct end state.

PassSPF lookup count is healthy (2/10)›

Worst-case evaluation stays within the limit with headroom to spare.

PassSPF ends in '-all' (hard fail)›

Unauthorised hosts are explicitly rejected. This is the correct end state.

PassGoogle Workspace's DKIM key is published at google._domainkey›

Detected via SPF include:_spf.google.com. A valid public key for this service is published at google._domainkey.docusign.com.

Pass7 DKIM key(s) published›

Found at: google, m1, mailo, mandrill, s1, s2, smtpapi.

PassSelector 'google' uses a 2048-bit RSA key›

Key length meets current guidance.

PassSelector 's1' uses a 2048-bit RSA key›

Key length meets current guidance.

PassBIMI is published with a certificate reference›

The record at default._bimi.docusign.com names a logo and a Verified Mark Certificate (a=), and DMARC is enforcing, which BIMI requires. We read the record only; the logo and certificate themselves were not fetched or checked.

PassZone is signed and validates›

A validating resolver reported this zone's answers as authenticated. Resolvers that validate DNSSEC reject a tampered answer for your SPF, DKIM and DMARC records rather than pass it on. This also makes DANE available to you.

Transport and zone

Where your mail lands, and whether the DNS carrying your records can be trusted.

MXmxa-00567a01.gslb.pphosted.com, mxb-00567a01.gslb.pphosted.com
Reverse DNSforward-confirmed on every host
MTA-STSnot published
TLS-RPTnot published
BIMIpublished
DNSSECsigned · chain validates
CAAno record · any CA may issue
DANEno TLSA records

This is the configuration. It is not the whole picture.

A DNS scan cannot tell you whether docusign.com’s mail actually aligns, because alignment is decided per message at the receiver. Collect DMARC aggregate reports to see every source sending as this domain.

docusign.com scores A for SPF, DKIM and DMARC · Signet