Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
safe-connection.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 15:43:44 UTC · ↺ Refresh
MX Hostnames
- mx02.deltacity.net
MX Priorities
- mx02.deltacity.net: 10
A / AAAA Records
- 91.190.229.245 ↩ rp02.deltacity.net
Mail Server IPs
- 91.190.227.189 ↩ mx02.deltacity.net
SOA Record
Raw SOA
ns01.deltacity.net hostmaster.deltacity.net 2025100901 28800 7200 604800 86400
Primary NS (mname)
ns01.deltacity.net
Admin Email (rname)
hostmaster@deltacity.net
Serial
2025100901
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
ns01.deltacity.net
dns2.epag.net
dns1.epag.net
SPF Record
✓ Strict (-all)
v=spf1 mx -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: 736 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
1 record- SPFv=spf1 mx -all
Full email verification for safe-connection.de
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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