Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
skf-koeln.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-30 13:24:17 UTC · ↺ Refresh
MX Hostnames
- skfkoeln-de0i.mail.protection.outlook.com
MX Priorities
- skfkoeln-de0i.mail.protection.outlook.com: 0
A / AAAA Records
- 208.82.73.21 ↩ erz-live.dns.boreus.de
Mail Server IPs
- 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
- 52.101.68.3 ↩ mail-db7pr03cu00403.inbound.protection.outlook.com
- 52.101.68.5 ↩ mail-du2pr03cu00105.inbound.protection.outlook.com
- 52.101.68.18 ↩ mail-db4pr02cu00302.inbound.protection.outlook.com
- 2a01:111:f403:ca04::1 ↩ mail-db7pr03cu00401.inbound.protection.outlook.com
- 2a01:111:f403:ca09::7 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 2a01:111:f403:ca04::7 ↩ mail-db4pr02cu00307.inbound.protection.outlook.com
- 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1053.ui-dns.com hostmaster.1und1.de 2017012567 28800 7200 604800 300
Primary NS (mname)
ns1053.ui-dns.com
Admin Email (rname)
hostmaster@1und1.de
Serial
2017012567
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1053.ui-dns.de
ns1053.ui-dns.org
ns1053.ui-dns.com
ns1053.ui-dns.biz
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:78.35.22.234 ip4:78.35.22.237 ip6:2a01:111:f403:c20c::1 include:spf.protection.outlook.com include:spf.turbo-smtp.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
8 records- SPFv=spf1 ip4:78.35.22.234 ip4:78.35.22.237 ip6:2a01:111:f403:c20c::1 include:spf.protection.outlook.com include:spf.turbo-smtp.com ~all
- llta9dnh77fp9iq6pceg8cftb
- apple-domain-verification=eKoIlgH5HrhQQv6L
- swisssign-check=kraWLyen2oD8QzMF3vgmk1sKTew
- 36s5iednumv1jqlg1agk9u9et5
- swisssign-check=Po21DL4xFvqNFaxXnAjzvO062qQ
- 0ttetDh5lckHHe9wY3plbV3e0kgnZ5gpzq7o9CZKJQ3TnglfpPPi4YHBRM68FXoXC5faXnFLm8vAyOrhJVX5qw==
- MS=ms23552789
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