Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sps.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-03 08:49:16 UTC · ↺ Refresh
MX Hostnames
- mx3.mas.t-systems-service.com
- mx2.mas.t-systems-service.com
- mx1.mas.t-systems-service.com
MX Priorities
- mx2.mas.t-systems-service.com: 20
- mx3.mas.t-systems-service.com: 30
- mx1.mas.t-systems-service.com: 10
A / AAAA Records
- 99.84.160.28 ↩ server-99-84-160-28.jfk50.r.cloudfront.net
- 99.84.160.77 ↩ server-99-84-160-77.jfk50.r.cloudfront.net
- 99.84.160.33 ↩ server-99-84-160-33.jfk50.r.cloudfront.net
- 99.84.160.74 ↩ server-99-84-160-74.jfk50.r.cloudfront.net
Mail Server IPs
- 46.29.101.1 ↩ muc-mta01.mas.t-systems-service.com
- 217.150.155.12 ↩ mgb-mta02.mas.t-systems-service.com
- 217.150.155.10 ↩ mgb-mta01.mas.t-systems-service.com
- 46.29.101.2 ↩ muc-mta02.mas.t-systems-service.com
- 94.100.254.155 ↩ ffm-mta01.mas.t-systems-service.com
SOA Record
Raw SOA
ns-1235.awsdns-26.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1235.awsdns-26.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1979.awsdns-55.co.uk
ns-430.awsdns-53.com
ns-867.awsdns-44.net
ns-1235.awsdns-26.org
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:52.31.43.128 include:spf.protection.outlook.de include:spf.protection.outlook.com include:spf.exclaimer.net include:mx1.mas.t-systems-service.com include:mx2.mas.t-systems-service.com include:mx3.mas.t-systems-service.com -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 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
1 record- SPFv=spf1 mx ip4:52.31.43.128 include:spf.protection.outlook.de include:spf.protection.outlook.com include:spf.exclaimer.net include:mx1.mas.t-systems-service.com include:mx2.mas.t-systems-service.com include:mx3.mas.t-systems-service.com -all
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