Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
atsonline.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-03 07:23:54 UTC · ↺ Refresh
MX Hostnames
- mx2.active-elements.de
MX Priorities
- mx2.active-elements.de: 5
A / AAAA Records
- 88.99.59.121 ↩ your2.active-elements.de
- 2a01:4f8:10a:b90::3 ↩ your2.active-elements.de
Mail Server IPs
- 88.99.59.97 ↩ mx2.active-elements.de
- 2a01:4f8:10a:b90::4 (no PTR)
SOA Record
Raw SOA
ns2.active-elements.de info.atsonline.de 2025103003 10800 3600 604800 10800
Primary NS (mname)
ns2.active-elements.de
Admin Email (rname)
info@atsonline.de
Serial
2025103003
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
10800s
Nameservers (NS)
ns2.active-elements.de
ns3.active-elements.de
SPF Record
✓ Strict (-all)
v=spf1 ip4:87.128.14.118 ip4:88.99.59.87 ip4:88.99.59.97 ip4:159.69.63.154 ip6:2a01:4f8:10a:b90::2 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict 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
✓ 1 found
default._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 ip4:87.128.14.118 ip4:88.99.59.87 ip4:88.99.59.97 ip4:159.69.63.154 ip6:2a01:4f8:10a:b90::2 include:spf.protection.outlook.com -all
- MS=ms59567190
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