MailAuthWatch
A

stripe.com

Email authentication is in good shape.

Checked Tue, 01 Sep 2026 21:07:48 GMT using public DNS · 121 ms

SPF
OK 7/10 lookups
DKIM
OK 9 selectors
DMARC
OK p=reject
Mail provider
Google Workspace

Know before this breaks

Records drift: a new SaaS tool pushes SPF over 10 lookups, a DKIM key gets rotated, someone edits DMARC. MailAuthWatch re-checks stripe.com every day and alerts you by email or Slack the moment anything changes.

Monitor stripe.com from $29/month

SPF OK

v=spf1 ip4:198.2.180.60/32 ip4:13.111.2.227/32 include:spf1.stripe.com include:greenhouse-outbound-mail.stripe.com include:_spf.qualtrics.com ~all
DNS lookups
7 of 10 allowed
Final mechanism
~all
  • OK No problems detected.
Include chain (7 lookups resolved)
DomainViaStatusRecord
spf1.stripe.comrootOKv=spf1 include:_spf.google.com include:amazonses.com include:mail.zendesk.com ~all
_spf.google.comspf1.stripe.comOKv=spf1 ip4:74.125.0.0/16 ip4:209.85.128.0/17 ip6:2001:4860:4864::/56 ip6:2404:6800:4864::/56 ip6:2607:f8b0:4864::/56 ip6:2800:3f0:4864::/56 ip6:2a00:1450:4864::/56 ip6:2c0f:fb50:4864::/56 ~all
amazonses.comspf1.stripe.comOKv=spf1 ip4:199.255.192.0/22 ip4:199.127.232.0/22 ip4:54.240.0.0/18 ip4:69.169.224.0/20 ip4:23.249.208.0/20 ip4:23.251.224.0/19 ip4:76.223.176.0/20 ip4:54.240.64.0/18 ip4:76.223.128.0/19 ip4:216.221.160.0/19 ip4:206.55.144.0/20 ip4:24.110.64.0/18 ip4:98.77.0.0/16 -all
mail.zendesk.comspf1.stripe.comOKv=spf1 ip4:103.151.192.0/23 ip4:185.12.80.0/22 ip4:188.172.128.0/20 ip4:192.161.144.0/20 ip4:216.198.0.0/18 ~all
greenhouse-outbound-mail.stripe.comrootOKv=spf1 ip4:69.72.40.93 ip4:69.72.40.94 ip4:69.72.40.95 ip4:69.72.40.96 ip4:69.72.40.97 ip4:69.72.40.98 ip4:69.72.40.99 ip4:69.72.47.205 include:greenhouse-outbound-mail-old.stripe.com
greenhouse-outbound-mail-old.stripe.comgreenhouse-outbound-mail.stripe.comOKv=spf1 ip4:146.20.191.233 ip4:23.253.182.234 ip4:192.237.158.85 ip4:23.253.183.250 ip4:209.61.151.40 ip4:104.130.122.229 ip4:50.23.218.215 ip4:209.61.151.128
_spf.qualtrics.comrootOKv=spf1 ip4:162.247.216.0/22 ip4:139.60.152.0/22 ip4:98.97.248.0/21 ip4:64.69.212.0/24 ip4:54.186.193.102/32 ip4:52.222.73.120/32 ip4:52.222.73.83 ip4:52.222.62.51 ip4:52.222.75.85 ip4:52.222.89.228 ip4:160.1.62.192 ip4:52.61.91.9 ip4:15.200.21.50 ip4:15.200.201.185 ip4:15.200.44.248 -all

DKIM OK

DKIM selectors cannot be listed from DNS, so 79 selectors used by common providers were probed.

SelectorKeyRecord
googleRSA 1024-bit Weakv=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC4T1PE2vh5xqRGzOrDnkoi03N/BFQ+GLa/…
s1RSA 1024-bit Weakk=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDRJjDdiZeTAd6hRY1BMQH098lqTGwdTCGuY4VK…
s2RSA 1024-bit Weakk=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDR/9Km49dOTJZfnn/mL4N3Pv6RDxVq7VmN+/fY…
mandrillRSA 1024-bit Weakv=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCrLHiExVd55zd/IQ/J/mRwSRMAocV/hMB3…
cmRSA 1024-bit Weakv=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDsHNFnC9xrivujfoSFF3IIn3pBDKMn/sEA…
zendesk1RSA 2048-bit OKv=DKIM1;t=s;n=core;k=rsa;p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA9IqdLrO3Zr2/56MHt8o…
zendesk2RSA 2048-bit OKv=DKIM1; t=s; n=core; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAmiSFNkgXrO3I8aO…
m1RSA 1024-bit Weakk=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC4PZZJiwMfMB/CuIZ9yAtNEGzfKzQ7WC7hfGg8…
sesRSA 1024-bit Weakv=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDZ2yNhrIYlBsNKxjuLnwF1K1PinH3GLxl5…
  • WarningDKIM selectors "google", "s1", "s2", "mandrill", "cm", "m1", "ses" use 1024-bit keys. Rotate to 2048 bits.

DMARC OK

v=DMARC1; p=reject; pct=100; fo=1; rua=mailto:dmarc-reports@stripe.com; ruf=mailto:dmarc-forensics@stripe.com;
Policy
p=reject
Applies to
100% of failing mail
Aggregate reports
mailto:dmarc-reports@stripe.com
  • OK No problems detected.

Mail exchange and extras

PriorityExchange
10aspmx.l.google.com
20alt1.aspmx.l.google.com
20alt2.aspmx.l.google.com
30aspmx2.googlemail.com
30aspmx3.googlemail.com
  • OK No problems detected.
MTA-STS
Not published optional: enforces TLS for inbound mail
TLS-RPT
Not published
BIMI
Not published optional: brand logo in inboxes, requires p=quarantine or reject

How the grade is calculated

Score 100/100. SPF present and valid. SPF ends with ~all. DKIM found (9 selectors). DKIM key is 2048-bit or stronger. DMARC present and valid. DMARC policy is reject. DMARC aggregate reporting enabled. SPF contributes up to 35 points, DKIM up to 25, DMARC up to 40 (policy strength and reporting). Any critical issue caps the grade at C. Lookups that failed are shown as "not measured" and never counted as missing.

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Public checks run in the last few days. Every report is measured live from DNS when it is opened.