Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
dexcom.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-23 03:52:31 UTC · ↺ Refresh
MX Hostnames
- dexcom-com.mail.protection.outlook.com
MX Priorities
- dexcom-com.mail.protection.outlook.com: 0
A / AAAA Records
- 162.159.133.80 (no PTR)
- 162.159.130.80 (no PTR)
Mail Server IPs
- 52.101.194.3 ↩ mail-ch1pr04cu00103.inbound.protection.outlook.com
- 52.101.41.56 ↩ mail-sj0pr21cu00100.inbound.protection.outlook.com
- 52.101.41.6 ↩ mail-sj0pr03cu01406.inbound.protection.outlook.com
- 52.101.194.19 ↩ mail-ch5pr02cu00303.inbound.protection.outlook.com
- 2a01:111:f403:f90d:: ↩ mail-sn1pr0501cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f90a::1 ↩ mail-bn8pr03cu00201.inbound.protection.outlook.com
- 2a01:111:f403:f908:: ↩ mail-bn1pr21cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c902::14 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-cloud-a1.googledomains.com cloud-dns-hostmaster.google.com 38 21600 3600 259200 300
Primary NS (mname)
ns-cloud-a1.googledomains.com
Admin Email (rname)
cloud-dns-hostmaster@google.com
Serial
38
Refresh
21600s
Retry
3600s
Expire
259200s
Minimum TTL
300s
Nameservers (NS)
ns-cloud-a4.googledomains.com
ns-cloud-a3.googledomains.com
ns-cloud-a1.googledomains.com
ns-cloud-a2.googledomains.com
SPF Record
✓ Strict (-all)
v=spf1 mx include:spf.protection.outlook.com include:spf.protection.redatatech.com include:_spf.salesforce.com ip4:192.254.121.129 include:6996351.spf03.hubspotemail.net include:servers.mcsv.net include:spf.mandrillapp.com ip4:13.210.152.254 ip4:163.53.23.2 ip4:163.53.23.75 ip4:23.227.61.129/31 ip4:54.153.190.82 -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; fo=1; ri=3600; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
36 records- atlassian-domain-verification=8OeeHjf7fw6xKjJ8U2nRkJjb6GCvJeZWqPW33g3AY1WV1HBIMMXgTfmLuZTkrSbv
- onetrust-domain-verification=992bdfdb6ff6403484fbbb4563a91c61
- google-site-verification=ie8ubFLQbAXwekvxcE6vGLwF1WNPYHY4Be2RRztacXE
- jamf-site-verification=868lXj6uJSeqMOmF3yJHOg
- google-site-verification=Onsc6TWkfX23zcJOOcJPnDpaJf_fzL5ziUh9iH_7ILM
- O-dw5_qJ66NE9daj2VoaWh18tzw
- ca3-597a6ddac1554496a32392e5f66f6141
- adobe-idp-site-verification=13c1df9cecdda5a4f1208043a555b25b058c6ab52b10d2382149fe8c1395d4ea
- smartsheet-site-validation=cnoSxtu5ZxGRRh7cl8oLY79XB4ZVA61o
- 69e0e18b26194693a0d1f6614d299f62
- google-site-verification=S3EMYqhECf_77GNxY8CEVDnZhcpW57dI8MIVxy6s7q4
- aNK0Q9d+bnQ1wWdLV2R4okiz2tFaWmOolbDvvVpJzCYbVUnMjBrUz/MpAa66SDVKRxFWK1D5RSpD/1HCvnGxwg==
- google-site-verification=zKwsrQPyoah9ESsY_6THkypDS6a54OjWtO1uVYfUVM0
- google-site-verification=UnMclJ50HfFRp9_UEMc2Jia-pacfgjimOfv5cn6N21E
- atlassian-domain-verification=b7AbOK1V+ljnX7oGHefuSV7HxH+yFNMwxKRYuWgd1p57/MDzd+pe2MZjWGiQqhV7
- yq5CJDLJHBR6NZUYRXlan23iBDDTxuslgEeQwfeIHeo=
- docusign=9f9fbd05-11e2-4347-9ba1-023792e22326
- postman-domain-verification=18652b465cd1011958196e9a94de5e2a0bb047e62d7ee6c2fbabbe21c2fc10bed4721d39b8fd78761e7f642f43c951636b81b5d86b9ddad769255f8d61690238
- google-site-verification=lCW6tl3gQPXMUTeRFmb1JjYOG5ETWpt2k3YaYFGbP8M
- google-site-verification=vjtlBXT1t22SZpgqdAVXFuuOaYvZ2ndfD69Y-HL2ruw
- SPFv=spf1 mx include:spf.protection.outlook.com include:spf.protection.redatatech.com include:_spf.salesforce.com ip4:192.254.121.129 include:6996351.spf03.hubspotemail.net include:servers.mcsv.net include:spf.mandrillapp.com ip4:13.210.152.254 ip4:163.53.23.2 ip4:163.53.23.75 ip4:23.227.61.129/31 ip4:54.153.190.82 -all
- MS=ms24833701
- traction-guest=956a3563-68a3-471b-bfe2-3f80347484f4
- miro-verification=59becafb633bacad0fd0aa98ea8f5e4212071206
- figma-domain-verification=79c6c0d527c727ae1135e7182055efa2ad9f41fd53fb0337fe20fa0c3a176712-1737745127
- beautifulai-site-verification=0543f7e9-2a2a-478e-95a1-f3c0bd7c5be1
- docusign=1b3ac49d-ce6f-40b4-893d-e845bb814fc2
- docusign=3fceab14-b498-4de0-9e01-b330448b5682
- globalsign-domain-verification=8WxlGPveI9iiGVPRCKkSUgQ0b6q6962okQzZJ_hHp5
- asv=4bf4a160833682807362a5fac9696010
- google-site-verification=ccFNhpuM4fAyn5uNr8K-rLk0vFOJO4DoWMIz-7c70s0
- apple-domain-verification=XoLdBFZa98uCv5vW
- google-site-verification=YpPpJk-g13eCN4Nrj1pY3IajjG9hRkuWqF3yWgG3cLw
- MS=ms52326489
- google-site-verification=I4gvDeJUoJ1mp71ENKK7bSbnvU9pIWVxdeOJkAoA-5g
- facebook-domain-verification=rxc3vtm6bb6ciie2ovx9shs7jg5m0a
Full email verification for dexcom.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits