Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
stmservicegroup.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 03:29:26 UTC · ↺ Refresh
MX Hostnames
- mail.stmservicegroup.com
- stmservicegroup-com.mail.protection.outlook.com
MX Priorities
- stmservicegroup-com.mail.protection.outlook.com: 0
- mail.stmservicegroup.com: 10
A / AAAA Records
- 192.252.151.32 ↩ s410.sureserver.com
Mail Server IPs
- 52.101.40.24 ↩ mail-cy5pr05cu00100.inbound.protection.outlook.com
- 52.101.8.42 ↩ mail-dm6pr03cu00402.inbound.protection.outlook.com
- 52.101.10.18 ↩ mail-bn8pr05cu00302.inbound.protection.outlook.com
- 52.101.42.18 ↩ mail-co1pr03cu00302.inbound.protection.outlook.com
- 2a01:111:f403:c802:: ↩ mail-cy4pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f908::1 ↩ mail-bn1pr04cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f90d::1 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
- 2a01:111:f403:c946::3 ↩ mail-ch0pr04cu00603.inbound.protection.outlook.com
- 192.252.151.32 ↩ s410.sureserver.com
SOA Record
Raw SOA
ns1.s410.sureserver.com hostmaster.stmservicegroup.com 1773976321 16384 2048 1048576 2560
Primary NS (mname)
ns1.s410.sureserver.com
Admin Email (rname)
hostmaster@stmservicegroup.com
Serial
1773976321
Refresh
16384s
Retry
2048s
Expire
1048576s
Minimum TTL
2560s
Nameservers (NS)
ns2.s410.sureserver.com
ns1.s410.sureserver.com
SPF Record
✓ Strict (-all)
v=spf1 include: spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 2 found
default._domainkey
dkim._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- MS=ms64858790
- SPFv=spf1 include: spf.protection.outlook.com -all
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