Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
astar1.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-19 16:04:59 UTC · ↺ Refresh
MX Hostnames
- astar1-com.mail.protection.outlook.com
MX Priorities
- astar1-com.mail.protection.outlook.com: 0
A / AAAA Records
- 147.135.54.85 ↩ ns103550.ip-147-135-54.us
Mail Server IPs
- 52.101.9.14 ↩ mail-bl0pr03cu00206.inbound.protection.outlook.com
- 52.101.10.2 ↩ mail-bn8pr03cu00202.inbound.protection.outlook.com
- 52.101.50.13 ↩ mail-mw2pr02cu00605.inbound.protection.outlook.com
- 52.101.42.18 ↩ mail-co1pr03cu00302.inbound.protection.outlook.com
- 2a01:111:f403:f905::4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
- 2a01:111:f403:f913::1 ↩ mail-cy5pr05cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f802::3 ↩ mail-sj0pr03cu01403.inbound.protection.outlook.com
- 2a01:111:f403:c946:: ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.xtrmmm.com rdorfeld.outlook.com 2026020802 3600 1800 1209600 86400
Primary NS (mname)
ns1.xtrmmm.com
Admin Email (rname)
rdorfeld@outlook.com
Serial
2026020802
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns1.xtrmmm.com
ns2.xtrmmm.com
SPF Record
✓ Strict (-all)
v=spf1 +a +mx +ip4:147.135.54.85 +include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; sp=none; aspf=r; adkim=r
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 +a +mx +ip4:147.135.54.85 +include:spf.protection.outlook.com -all
- google-site-verification=9296AMCPW3B330pzIgPZPXMuZj7BvIsNCM9s6VHGPvI
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