Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
tw.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-19 10:34:53 UTC · ↺ Refresh
MX Hostnames
- tw-de.mail.protection.outlook.com
MX Priorities
- tw-de.mail.protection.outlook.com: 10
A / AAAA Records
- 217.19.161.7 ↩ tw.de
- 2a03:ad00::5:0:0:0:c ↩ teukros12.tw.de
Mail Server IPs
- 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns.teamware-gmbh.de hostmaster.teamware-gmbh.de 2026022301 3600 3600 604800 86400
Primary NS (mname)
ns.teamware-gmbh.de
Admin Email (rname)
hostmaster@teamware-gmbh.de
Serial
2026022301
Refresh
3600s
Retry
3600s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
ns3.teamware-gmbh.de
ns.teamware-gmbh.de
ns5.tw.de
SPF Record
✓ Strict (-all)
v=spf1 a mx ip4:212.29.0.0/24 ip4:212.29.6.0/24 ip4:212.29.31.201 ip4:217.19.160.0/24 ip4:212.123.34.110 ip4:212.29.19.25 ip4:212.29.31.69 ip6:2a03:ad00:0:6::e6 ip6:2a03:ad00:0:4::/63 ip6:2a03:ad00:0:1::25 include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
⚠ 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: 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- MS=ms94210048
- zone-ownership-verification-867cfce89937209c2a43322bfd9981697b23bef5091327e5e2ee70a4420ce52a
- SPFv=spf1 a mx ip4:212.29.0.0/24 ip4:212.29.6.0/24 ip4:212.29.31.201 ip4:217.19.160.0/24 ip4:212.123.34.110 ip4:212.29.19.25 ip4:212.29.31.69 ip6:2a03:ad00:0:6::e6 ip6:2a03:ad00:0:4::/63 ip6:2a03:ad00:0:1::25 include:spf.protection.outlook.com -all
- MS=ms88756560
Full email verification for tw.de
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits