Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
colo4you.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 20:27:25 UTC · ↺ Refresh
MX Hostnames
- mailgateway.colo4you.de
MX Priorities
- mailgateway.colo4you.de: 10
A / AAAA Records
- 185.94.252.101 ↩ ws1.megaservers.de
Mail Server IPs
- 185.94.252.4 ↩ mailgateway.megaservers.de
- 2a03:e300:b::ffff:b95e:fc04 ↩ mailgateway.megaservers.de
SOA Record
Raw SOA
ns3.megaservers-dns.de andreas\.fahl.megaservers.de 2026022839 10800 3600 1209600 10800
Primary NS (mname)
ns3.megaservers-dns.de
Admin Email (rname)
andreas\@fahl.megaservers.de
Serial
2026022839
Refresh
10800s
Retry
3600s
Expire
1209600s
Minimum TTL
10800s
Nameservers (NS)
ns4.megaservers-dns.de
ns1.megaservers-dns.de
ns2.megaservers-dns.de
ns3.megaservers-dns.de
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:185.94.252.4 ip6:2a03:e300:b::ffff:b95e:fc04 ~all
📊 DNS lookups: 0/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; adkim=s; aspf=s
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
dkim._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: dkim
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- google-site-verification=IktQ2clUDouUtRl39goo_UnZDUFgR1tsdC0-B5g_0Ro
- SPFv=spf1 ip4:185.94.252.4 ip6:2a03:e300:b::ffff:b95e:fc04 ~all
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