Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
st77.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-22 21:43:08 UTC · ↺ Refresh
MX Hostnames
- st77-de.mail.protection.outlook.com
MX Priorities
- st77-de.mail.protection.outlook.com: 0
A / AAAA Records
- 217.160.0.31 ↩ 217-160-0-31.elastic-ssl.ui-r.com
Mail Server IPs
- 52.101.73.19 ↩ mail-as8pr04cu00803.inbound.protection.outlook.com
- 52.101.68.15 ↩ mail-db6pr03cu00107.inbound.protection.outlook.com
- 52.101.73.11 ↩ mail-am1pr04cu00103.inbound.protection.outlook.com
- 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 2a01:111:f403:ca04::4 ↩ mail-db4pr02cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca09::2 ↩ mail-am0pr83cu00402.inbound.protection.outlook.com
- 2a01:111:f403:ca04::e ↩ mail-db8pr02cu00106.inbound.protection.outlook.com
- 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1017.ui-dns.de hostmaster.1und1.de 2017072495 28800 7200 604800 300
Primary NS (mname)
ns1017.ui-dns.de
Admin Email (rname)
hostmaster@1und1.de
Serial
2017072495
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1017.ui-dns.biz
ns1017.ui-dns.org
ns1017.ui-dns.de
ns1017.ui-dns.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:servers.mcsv.net include:userinclude.dme3ds1.com include:spf.protection.outlook.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 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
4 records- apple-domain-verification=Q2r7O_UWezIJCjnaRypBvtH_6738b5iXQlbz-QRo3Ms
- SPFv=spf1 include:servers.mcsv.net include:userinclude.dme3ds1.com include:spf.protection.outlook.com ~all
- sophos-domain-verification=5350b3f683ff6909dc0ec4c1908e7f6499bda0ef
- v=verifydomain MS=3349652
Full email verification for st77.de
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