Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
st.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-18 00:24:39 UTC · ↺ Refresh
MX Hostnames
- st-com.mail.protection.outlook.com
MX Priorities
- st-com.mail.protection.outlook.com: 10
A / AAAA Records
- 54.194.135.49 ↩ ec2-54-194-135-49.eu-west-1.compute.amazonaws.com
Mail Server IPs
- 52.101.68.12 ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
- 52.101.73.2 ↩ mail-as9pr07cu00302.inbound.protection.outlook.com
- 52.101.68.5 ↩ mail-du2pr03cu00105.inbound.protection.outlook.com
- 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
SOA Record
Raw SOA
delta.dmz-eu.st.com dnsmaster.st.com 2022053427 3600 600 2419200 3600
Primary NS (mname)
delta.dmz-eu.st.com
Admin Email (rname)
dnsmaster@st.com
Serial
2022053427
Refresh
3600s
Retry
600s
Expire
2419200s
Minimum TTL
3600s
Nameservers (NS)
delta.dmz-eu.st.com
a28-66.akam.net
a2-66.akam.net
delta.dmz-ap.st.com
a1-23.akam.net
delta.dmz-us.st.com
a8-66.akam.net
a5-64.akam.net
a9-65.akam.net
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.salesforce.com include:spf.protection.outlook.com ip4:164.129.1.35 ip4:138.198.100.35 -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 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
11 records- MS=ms37882190
- google-site-verification=_xBu4ex75D1HXaEgJtlOH4-KQbym0EEXrtLb6sfCQJU
- MS=ms59221250
- EL+b+HLOjUandS3GnT4aSMKKl+hEpYEba0apWnXH3FqPtQSOaZBda+ZakVW9rT05hN9wjSvzcUY3RfQemlAQ7g==
- _globalsign-domain-verification=sbWhwwHtdnXMY_8oa_2AwroFfoc6imgOvFuDWHNoP0
- atlassian-domain-verification=f3LTJ77zFUhFncMSteHljGP2BwYABw9ykWzPP08I7DFMy7gKAbOr7N5tc5SWGglC
- cisco-ci-domain-verification=25dd1b4722f650b8c8d7cb3beb39c348fc90005fbed666c7e559ff0f7306decc
- docker-verification=d6d198bc-8993-4f90-9414-e4febe3b4437
- SPFv=spf1 include:_spf.salesforce.com include:spf.protection.outlook.com ip4:164.129.1.35 ip4:138.198.100.35 -all
- docusign=c2f9caa2-efaa-4684-8363-480aa8209a2f
- docusign=175308d5-aa3a-4d76-a827-b74155ac8e32
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