Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
osma.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-03 00:27:30 UTC · ↺ Refresh
MX Hostnames
- osma-de.mail.protection.outlook.com
MX Priorities
- osma-de.mail.protection.outlook.com: 10
A / AAAA Records
- 81.169.145.91 ↩ w8b.rzone.de
- 2a01:238:20a:202:1091:: ↩ w8b.rzone.de
Mail Server IPs
- 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
SOA Record
Raw SOA
shades01.rzone.de hostmaster.strato-rz.de 2023031539 86400 7200 604800 300
Primary NS (mname)
shades01.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2023031539
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
shades01.rzone.de
docks06.rzone.de
SPF Record
✓ Strict (-all)
v=spf1 ip4:62.159.60.152/29 ip4:20.218.193.218 ip4:212.34.64.185 include:spf.protection.outlook.com include:_spf.itandtel.at include:aspmx.pardot.com include:spf.mailtastic.com include:spf.docuguide.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1;p=none;pct=100;rua=mailto:[email protected];ruf=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
5 records- atlassian-sending-domain-verification=96ac3101-a904-48ec-9e24-f7bee444f735
- SPFv=spf1 ip4:62.159.60.152/29 ip4:20.218.193.218 ip4:212.34.64.185 include:spf.protection.outlook.com include:_spf.itandtel.at include:aspmx.pardot.com include:spf.mailtastic.com include:spf.docuguide.com -all
- sending_domain1014792=73cd450b134959ac495c77370fde12099c409fe6a6438e82fd54530d0ba32960
- MS=ms28027193
- google-site-verification=zccay8eQ8mqY8EIX2bSXg92TduEhoNRepg912NuXGHA
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