Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
siemon.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 04:54:51 UTC · ↺ Refresh
MX Hostnames
- esg.siemon.com
MX Priorities
- esg.siemon.com: 10
A / AAAA Records
- 104.226.21.66 ↩ static-104-226-21-66.wlfr.ct.frontiernet.net
Mail Server IPs
- 152.44.42.175 ↩ esg.siemon.com
SOA Record
Raw SOA
ns21.worldnic.com namehost.worldnic.com 126030915 10800 3600 604800 3600
Primary NS (mname)
ns21.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126030915
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns22.worldnic.com
ns21.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:104.226.21.78 ip4:104.226.21.67 include:aspmx.pardot.com include:spf.protection.outlook.com include:spf.esvacloud.com include:email.prnewswire.com include:_spf.salesforce.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 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
6 records- 7PNVE5Qynf1y2f9buAkfPt/1pMQI+83WSc0EQm8ig0300+DcqYJGqLblVMiZUam6Xk0nGeFzFgkbBqDHscsjnQ==
- MS=ms65597431
- duo_sso_verification=KBGMQigJsnivYwC1BP2tNjC3d6WdBeOVfircA8vCUPEP3v5x9F8ZiL5C7veQ4P7C
- SPFv=spf1 ip4:104.226.21.78 ip4:104.226.21.67 include:aspmx.pardot.com include:spf.protection.outlook.com include:spf.esvacloud.com include:email.prnewswire.com include:_spf.salesforce.com -all
- google-site-verification=RrriHXAzhnTqgIpD03WM0mrOwpi9e-rxA4ljmVA4wbE
- pardot_10432_*=a1a3cb3a0269685e5b2a5f26982d1c3b78b86d6d0b14347190589454a782caba
Full email verification for siemon.com
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