Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
stmsupport.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 09:34:07 UTC · ↺ Refresh
MX Hostnames
- stmsupport-com.mail.protection.outlook.com
MX Priorities
- stmsupport-com.mail.protection.outlook.com: 10
A / AAAA Records
- 198.202.211.1 (no PTR)
Mail Server IPs
- 52.101.41.24 ↩ mail-sj0pr03cu01600.inbound.protection.outlook.com
- 52.101.194.19 ↩ mail-ch5pr02cu00303.inbound.protection.outlook.com
- 52.101.10.5 ↩ mail-bn6pr04cu00105.inbound.protection.outlook.com
- 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c92c::1 ↩ mail-dm6pr03cu00401.inbound.protection.outlook.com
- 2a01:111:f403:f90d:: ↩ mail-sn1pr0501cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c922:: ↩ mail-bl0pr03cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c92c::3 ↩ mail-dm5pr04cu00103.inbound.protection.outlook.com
SOA Record
Raw SOA
marvin.ns.cloudflare.com dns.cloudflare.com 2399402287 10000 2400 604800 1800
Primary NS (mname)
marvin.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399402287
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
naya.ns.cloudflare.com
marvin.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.ess.barracudanetworks.com a:barracuda.stmsupport.com include:spf.protection.outlook.com ip4:67.62.101.154 ip4:149.72.39.215 ip4:149.72.182.166 ip4:72.16.40.6 -all
📊 DNS lookups: 3/10
✓ 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
selector1._domainkey
selector2._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
10 records- globalsign-domain-verification=DFC54D858FBE605CCA30C6BA6149DB4E
- globalsign-domain-verification=F449E6A15566EFB0F4D0C287DE092373
- google-site-verification=KrUab7IpFkpGn90gODi4Q3WG7HZzCJzEhGyqqbNhyb0
- google-site-verification=L4JMmsu7ROjcl_u4VduDxspaFkBfPj5L6wcovwMqpTs
- google-site-verification=bUQTtYA39413L4k9LMlNwesIDVfnAnHb_bZNwgvSBjE
- google-site-verification=qOAG32acR7Jt4nAazmTWlMvKlJq8Nvt10SDBPWzmiH4
- SPFv=spf1 include:spf.ess.barracudanetworks.com a:barracuda.stmsupport.com include:spf.protection.outlook.com ip4:67.62.101.154 ip4:149.72.39.215 ip4:149.72.182.166 ip4:72.16.40.6 -all
- MS=ms29399239
- f5wdmcnp7q4853lq7sntj9vdfk1z2ddd
- globalsign-domain-verification=97ba2e9ac9e865849e8e23cfd3091b6d
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