Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
calw.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-29 23:03:51 UTC · ↺ Refresh
MX Hostnames
- calw-de.mail.protection.outlook.com
MX Priorities
- calw-de.mail.protection.outlook.com: 10
A / AAAA Records
- 185.88.212.76 ↩ srv-a-io.c-737.maxcluster.net
Mail Server IPs
- 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
- 52.101.73.4 ↩ mail-am0pr83cu00404.inbound.protection.outlook.com
- 52.101.68.15 ↩ mail-db6pr03cu00107.inbound.protection.outlook.com
- 52.101.68.10 ↩ mail-dbbpr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca09::f ↩ mail-am7pr05cu00307.inbound.protection.outlook.com
- 2a01:111:f403:ca04::4 ↩ mail-db4pr02cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca09::8 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::d ↩ mail-as9pr05cu01305.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1109.ui-dns.org hostmaster.1und1.com 2017060313 28800 7200 604800 600
Primary NS (mname)
ns1109.ui-dns.org
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060313
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns1099.ui-dns.com
ns1078.ui-dns.biz
ns1060.ui-dns.de
ns1109.ui-dns.org
SPF Record
✓ Strict (-all)
v=spf1 a mx ip4:195.38.20.30 include:spf.protect.kivbf.de include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1;p=none;rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 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
9 records- zone-ownership-verification-170142ab63361f93554b46b93f5ff5b9de7b72b8dfe3ab1e915e1c645ad2a5f3
- swisssign-check=OF0_SPZHRNUEvevPjUAIj9-imJ0
- SPFv=spf1 a mx ip4:195.38.20.30 include:spf.protect.kivbf.de include:spf.protection.outlook.com -all
- docusign=b54e24d9-d20b-40f4-947a-bc7233db9090
- atlassian-domain-verification=goBgKdUJ0ZCjgj0aWrvN/i6aAd1mq9MpWfjjJ7wlbSZVK2xfMM/4g0m3foNHXLAX
- apple-domain-verification=5XMG5nIsV3PmD40t
- atlassian-sending-domain-verification=619f4aca-5fa8-4ad4-8e7f-bdd192e2863d
- swisssign-check=5f1-IW9iek_aZyrMWncIITKYEWY
- MS=4B4E02CD3757110108938459B83B572695ACAE26
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