Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rittershaus.net
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-22 05:57:31 UTC · ↺ Refresh
MX Hostnames
- mx-02-eu-central-1.prod.hydra.sophos.com
- mx-01-eu-central-1.prod.hydra.sophos.com
MX Priorities
- mx-01-eu-central-1.prod.hydra.sophos.com: 10
- mx-02-eu-central-1.prod.hydra.sophos.com: 20
A / AAAA Records
- 116.202.252.192 ↩ dedi6217.your-server.de
Mail Server IPs
- 18.159.237.67 ↩ ec2-18-159-237-67.eu-central-1.compute.amazonaws.com
- 52.57.79.230 ↩ ec2-52-57-79-230.eu-central-1.compute.amazonaws.com
SOA Record
Raw SOA
ns01.versatel.de hostmaster.1und1.net 2026031000 10000 3600 604800 86400
Primary NS (mname)
ns01.versatel.de
Admin Email (rname)
hostmaster@1und1.net
Serial
2026031000
Refresh
10000s
Retry
3600s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
ns03.versatel.de
ns01.versatel.de
ns02.versatel.de
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.prod.hydra.sophos.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;pct=100;rua=mailto:[email protected];ruf=mailto:[email protected];ri=86400;aspf=s;fo=0:1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 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
5 records- swisssign-check=SjozFM8mZ1aOJUvPq6BYmOhfx3c
- _globalsign-domain-verification=FWKwPhQZblrTaafelfBwXRw5k1HcfyqQPtacH0FZjs
- swisssign-check=IKQi6D4Gi_RAboQfrdQCNyACyZ8
- sophos-domain-verification=5ff5c12a167b08155db3563666c3434fcb7882da
- SPFv=spf1 include:_spf.prod.hydra.sophos.com -all
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