Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ressco.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-21 11:52:06 UTC · ↺ Refresh
MX Hostnames
- ressco-com.mail.protection.outlook.com
MX Priorities
- ressco-com.mail.protection.outlook.com: 0
A / AAAA Records
- 162.144.21.97 ↩ 162-144-21-97.unifiedlayer.com
Mail Server IPs
- 52.101.11.17 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
- 52.101.194.15 ↩ mail-ch4pr21cu00107.inbound.protection.outlook.com
- 52.101.41.56 ↩ mail-sj0pr21cu00100.inbound.protection.outlook.com
- 52.101.10.16 ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
- 2a01:111:f403:c927:: ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
- 2a01:111:f403:c946::4 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
- 2a01:111:f403:c931::1 ↩ mail-sa9pr03cu00201.inbound.protection.outlook.com
- 2a01:111:f403:f802::2 ↩ mail-sj2pr05cu00202.inbound.protection.outlook.com
SOA Record
Raw SOA
cns2001.hostgator.com dnsadmin.cloud1001.hostgator.com 2026032100 86400 7200 3600000 300
Primary NS (mname)
cns2001.hostgator.com
Admin Email (rname)
dnsadmin@cloud1001.hostgator.com
Serial
2026032100
Refresh
86400s
Retry
7200s
Expire
3600000s
Minimum TTL
300s
Nameservers (NS)
cns2002.hostgator.com
cns2001.hostgator.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:162.144.21.93 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;pct=100;rua=mailto:[email protected];ri=86400;fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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- MS=ms61484594
- SPFv=spf1 ip4:162.144.21.93 include:spf.protection.outlook.com -all
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