Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
hamburgwasser.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 19:16:19 UTC · ↺ Refresh
MX Hostnames
- hamburgwasser-de.mail.protection.outlook.com
MX Priorities
- hamburgwasser-de.mail.protection.outlook.com: 10
A / AAAA Records
- 80.158.56.243 ↩ ecs-80-158-56-243.reverse.open-telekom-cloud.com
Mail Server IPs
- 52.101.68.12 ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
- 52.101.73.8 ↩ mail-am0pr04cu00500.inbound.protection.outlook.com
- 52.101.73.4 ↩ mail-am0pr83cu00404.inbound.protection.outlook.com
- 52.101.73.2 ↩ mail-as9pr07cu00302.inbound.protection.outlook.com
- 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca09::6 ↩ mail-am4pr0401cu00106.inbound.protection.outlook.com
- 2a01:111:f403:ca04::e ↩ mail-db8pr02cu00106.inbound.protection.outlook.com
- 2a01:111:f403:ca09::1 ↩ mail-as9pr07cu00301.inbound.protection.outlook.com
SOA Record
Raw SOA
barbara.ns.cloudflare.com dns.cloudflare.com 2399657058 10000 2400 604800 1800
Primary NS (mname)
barbara.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399657058
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
barbara.ns.cloudflare.com
burt.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:193.53.23.137 ip4:193.53.23.138 ip4:193.53.23.40 ip4:193.53.23.39 a:otc-de-spf.mms.t-systems-service.com include:spf.protection.outlook.com include:spf.brevo.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; adkim=r; aspf=s
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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
3 records- brevo-code:e635799ba648b3c40ae3e54b8aa072fe
- SPFv=spf1 ip4:193.53.23.137 ip4:193.53.23.138 ip4:193.53.23.40 ip4:193.53.23.39 a:otc-de-spf.mms.t-systems-service.com include:spf.protection.outlook.com include:spf.brevo.com -all
- apple-domain-verification=1N9HhbGU0m75u51F
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