Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sequa.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-25 00:39:40 UTC · ↺ Refresh
MX Hostnames
- sequa-de.mail.protection.outlook.com
MX Priorities
- sequa-de.mail.protection.outlook.com: 10
A / AAAA Records
- 202.61.251.57 ↩ sequa.de
Mail Server IPs
- 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
- 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
- 52.101.68.12 ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca09::8 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com
- 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca04::c ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
SOA Record
Raw SOA
nsa5.schlundtech.de do-not-reply.sequa.de 2025051901 43200 7200 1209600 86400
Primary NS (mname)
nsa5.schlundtech.de
Admin Email (rname)
do-not-reply@sequa.de
Serial
2025051901
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
nsb5.schlundtech.de
nsa5.schlundtech.de
nsd5.schlundtech.de
nsc5.schlundtech.de
SPF Record
✓ Strict (-all)
v=spf1 ip4:195.14.211.39/32 ip4:5.35.245.123/32 ip4:88.99.103.15/32 include:spf.nl2go.com include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 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
2 records- apple-domain-verification=ln3Tn8Tca5HVlhcA
- SPFv=spf1 ip4:195.14.211.39/32 ip4:5.35.245.123/32 ip4:88.99.103.15/32 include:spf.nl2go.com include:spf.protection.outlook.com -all
Full email verification for sequa.de
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits