Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
strgroupusa.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 04:02:34 UTC · ↺ Refresh
MX Hostnames
- strgroupusa-com.mail.protection.outlook.com
MX Priorities
- strgroupusa-com.mail.protection.outlook.com: 10
A / AAAA Records
- 91.212.182.219 ↩ str3.str-webserver.com
Mail Server IPs
- 52.101.68.18 ↩ mail-db4pr02cu00302.inbound.protection.outlook.com
- 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
- 52.101.73.6 ↩ mail-am6pr04cu00306.inbound.protection.outlook.com
- 52.101.73.12 ↩ mail-am4pr0401cu00104.inbound.protection.outlook.com
- 2a01:111:f403:ca04::10 ↩ mail-dbapr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::1 ↩ mail-as9pr07cu00301.inbound.protection.outlook.com
- 2a01:111:f403:ca09::20 ↩ mail-as8pr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:ca04::5 ↩ mail-db3pr0202cu00205.inbound.protection.outlook.com
SOA Record
Raw SOA
ns5.vooservers.net serverlogs.vooservers.com 2018053004 3600 7200 1209600 86400
Primary NS (mname)
ns5.vooservers.net
Admin Email (rname)
serverlogs@vooservers.com
Serial
2018053004
Refresh
3600s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns5.vooservers.net
ns2.vooservers.net
SPF Record
✓ Soft Fail (~all)
v=spf1 a:outbound5.bullhorn.com a:outbound3.bullhorn.com a:outbound2.bullhorn.com a:o1.email.bullhorn.com include:spf.protection.outlook.com ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; pct=100; adkim=r; aspf=r
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
default._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
1 record- SPFv=spf1 a:outbound5.bullhorn.com a:outbound3.bullhorn.com a:outbound2.bullhorn.com a:o1.email.bullhorn.com include:spf.protection.outlook.com ~all
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