Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
calcon.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-21 14:16:29 UTC · ↺ Refresh
MX Hostnames
- mx1.calcon.de
- mx2.calcon.de
MX Priorities
- mx1.calcon.de: 10
- mx2.calcon.de: 20
A / AAAA Records
- 5.35.226.112 ↩ wp343.webpack.hosteurope.de
Mail Server IPs
- 80.250.128.7 ↩ mailgw1.aareon.com
- 80.250.128.8 ↩ mailgw2.aareon.com
SOA Record
Raw SOA
ns27.domaincontrol.com dns.jomax.net 2026021901 28800 7200 604800 600
Primary NS (mname)
ns27.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026021901
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns27.domaincontrol.com
ns28.domaincontrol.com
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx include:spf.protection.outlook.com include:_spf.aareon.com include:spf.crsend.com a:mail-out.m-online.net ip4:80.250.142.115 ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
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
5 records- webexdomainverification.4C675B8B4D01B136E053AB06FC0A3F65
- 23cZgqPJKNOoKlImi07b584r0Rk81v9+5dWM0pNcWMemdoZYyov4/UMtOmTK3517XGmoaPlcfMVPqjUXYmDeyA=9g. autons-aaaa................: relaunch 2a01:488:42:1000:50ed:8570:ec:6cd9
- atlassian-domain-verification=ynPh0BLvEHAjHzVGMYKdbvPiKP0COdW64TW6is1GWd0ekSj5cvIu80CBxQBZQmgL
- google-site-verification=giC6MrsBV0eP1kyOPiZ4bvJ7uYSp8pQxEW_7yq7-yt0
- SPFv=spf1 a mx include:spf.protection.outlook.com include:_spf.aareon.com include:spf.crsend.com a:mail-out.m-online.net ip4:80.250.142.115 ~all
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