Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
nyquist-systems.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 14:44:38 UTC · ↺ Refresh
MX Hostnames
- smail-emg-mta1.dts-security.de
- smail-emg.dts-security.de
MX Priorities
- smail-emg.dts-security.de: 10
- smail-emg-mta1.dts-security.de: 20
A / AAAA Records
- 217.160.0.15 ↩ 217-160-0-15.elastic-ssl.ui-r.com
- 2001:8d8:100f:f000::200 ↩ 2001-08d8-100f-f000-0000-0000-0000-0200.elastic-ssl.ui-r.com
Mail Server IPs
- 84.201.116.150 ↩ smail-emg.dts-security.de
- 212.101.206.84 ↩ smail-emg-mta1.dts-security.de
SOA Record
Raw SOA
ns1085.ui-dns.de hostmaster.1und1.com 2017060127 28800 7200 604800 600
Primary NS (mname)
ns1085.ui-dns.de
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060127
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns1085.ui-dns.de
ns1100.ui-dns.org
ns1080.ui-dns.com
ns1058.ui-dns.biz
SPF Record
✓ Strict (-all)
v=spf1 mx include:spf.protection.outlook.com include:spf.emailsignatures365.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=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: 392 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
2 records- SPFv=spf1 mx include:spf.protection.outlook.com include:spf.emailsignatures365.com -all
- MS=ms55595988
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