Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
marvo.de
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-29 02:36:02 UTC · ↺ Refresh
MX Hostnames
- de-smtp-inbound-2.mimecast.com
- de-smtp-inbound-1.mimecast.com
MX Priorities
- de-smtp-inbound-2.mimecast.com: 10
- de-smtp-inbound-1.mimecast.com: 10
A / AAAA Records
- 80.120.17.23 ↩ redirector.a1.net
Mail Server IPs
- 194.104.110.22 ↩ de-smtp-inbound-2.mimecast.com
- 194.104.108.22 ↩ de-smtp-inbound-1.mimecast.com
SOA Record
Raw SOA
dns2.a1.net domainadmin.a1.net 2026030201 3600 1200 3600000 600
Primary NS (mname)
dns2.a1.net
Admin Email (rname)
domainadmin@a1.net
Serial
2026030201
Refresh
3600s
Retry
1200s
Expire
3600000s
Minimum TTL
600s
Nameservers (NS)
dns3.a1.net
dns1.a1.net
dns2.a1.net
SPF Record
✓ Strict (-all)
v=spf1 +ip4:194.48.162.44 +ip4:209.82.53.149 +ip4:185.93.140.0/24 +ip4:94.199.92.0/23 +ip4:217.111.120.0/27 +ip4:62.134.45.32/28 +ip4:94.199.88.0/22 +ip4:62.245.148.0/26 +ip4:82.135.18.0/23 +include:_spf.retarus.com +include:de._netblocks.mimecast.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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
1 record- SPFv=spf1 +ip4:194.48.162.44 +ip4:209.82.53.149 +ip4:185.93.140.0/24 +ip4:94.199.92.0/23 +ip4:217.111.120.0/27 +ip4:62.134.45.32/28 +ip4:94.199.88.0/22 +ip4:62.245.148.0/26 +ip4:82.135.18.0/23 +include:_spf.retarus.com +include:de._netblocks.mimecast.com -all
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