Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
usmsystems.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 00:06:17 UTC · ↺ Refresh
MX Hostnames
- usmsystems-com.mail.protection.outlook.com
MX Priorities
- usmsystems-com.mail.protection.outlook.com: 10
A / AAAA Records
- 3.210.112.61 ↩ ec2-3-210-112-61.compute-1.amazonaws.com
Mail Server IPs
- 52.101.42.14 ↩ mail-mw2pr04cu00106.inbound.protection.outlook.com
- 52.101.194.3 ↩ mail-ch1pr04cu00103.inbound.protection.outlook.com
- 52.101.50.10 ↩ mail-mw2pr02cu00502.inbound.protection.outlook.com
- 52.101.8.51 ↩ mail-dm1pr04cu00203.inbound.protection.outlook.com
- 2a01:111:f403:f90a::1 ↩ mail-bn8pr03cu00201.inbound.protection.outlook.com
- 2a01:111:f403:f804::3 ↩ mail-co1pr03cu00403.inbound.protection.outlook.com
- 2a01:111:f403:c902::16 ↩ mail-byapr04cu00306.inbound.protection.outlook.com
- 2a01:111:f403:f901:: ↩ mail-mn2pr04cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1045.ui-dns.com hostmaster.1und1.com 2017060190 28800 7200 604800 600
Primary NS (mname)
ns1045.ui-dns.com
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060190
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns1045.ui-dns.com
ns1045.ui-dns.biz
ns1045.ui-dns.de
ns1045.ui-dns.org
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:aspmx.pardot.com mx ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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
7 records- hbcic0203cro4asfc9tom6fg7g
- euq98vcfcai6jfvk9mergm7dkl
- onc1j76mdnbvnug0eukgaoppnd
- pax8validate
- MS=ms74908004
- SPFv=spf1 include:spf.protection.outlook.com include:aspmx.pardot.com mx ~all
- 23b3c14pi312mshr8se2fl34vh
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