Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
eclass.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 22:54:27 UTC · ↺ Refresh
MX Hostnames
- mx1.mas.t-systems-service.com
- mail10.sendnode.com
- mx3.mas.t-systems-service.com
- mx2.mas.t-systems-service.com
MX Priorities
- mx2.mas.t-systems-service.com: 20
- mx1.mas.t-systems-service.com: 10
- mx3.mas.t-systems-service.com: 30
- mail10.sendnode.com: 40
A / AAAA Records
- 212.114.35.242 ↩ iwkoeln3.wwwserver.net
Mail Server IPs
- 217.150.155.10 ↩ mgb-mta01.mas.t-systems-service.com
- 46.29.101.2 ↩ muc-mta02.mas.t-systems-service.com
- 46.29.101.1 ↩ muc-mta01.mas.t-systems-service.com
- 217.150.155.12 ↩ mgb-mta02.mas.t-systems-service.com
- 94.100.254.155 ↩ ffm-mta01.mas.t-systems-service.com
- 185.98.186.12 ↩ mail10.sendnode.com
SOA Record
Raw SOA
ns1.is-fun.net hostmaster.is-fun.com 2017120608 86400 7200 604800 21600
Primary NS (mname)
ns1.is-fun.net
Admin Email (rname)
hostmaster@is-fun.com
Serial
2017120608
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
21600s
Nameservers (NS)
ns2.is-fun.net
ns1.is-fun.net
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.mailjet.com mx a:spf.mas.t-systems-service.com ip4:87.79.12.44 ip4:87.79.12.45 ip4:89.1.85.243 ip4:176.9.21.28 ip4:212.114.34.210 ip4:212.114.35.242 ip4:212.114.34.50 ip4:212.114.35.226 include:sendgrid.net include:spf.protection.outlook.com include:spf.crsend.com include:_spf.recruiting-portal.com include:_spf.sendnode.com ~all
📊 DNS lookups: 8/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 include:spf.mailjet.com mx a:spf.mas.t-systems-service.com ip4:87.79.12.44 ip4:87.79.12.45 ip4:89.1.85.243 ip4:176.9.21.28 ip4:212.114.34.210 ip4:212.114.35.242 ip4:212.114.34.50 ip4:212.114.35.226 include:sendgrid.net include:spf.protection.outlook.com include:spf.crsend.com include:_spf.recruiting-portal.com include:_spf.sendnode.com ~all
- OTcPASMbQw64/TDFdE8v0reQ1H1RJ3zxtdagnGXb/+IGErFop9/2dgu+kPiADg2G6ID8ydrPpiV4U/zk74F0Vw==
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