Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
bestmailing.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 09:46:45 UTC · ↺ Refresh
MX Hostnames
- bestmailing-com.mail.protection.outlook.com
MX Priorities
- bestmailing-com.mail.protection.outlook.com: 0
A / AAAA Records
- 216.158.90.92 ↩ 216.158.90.92.static.webnx.com
Mail Server IPs
- 52.101.194.17 ↩ mail-ch5pr02cu00401.inbound.protection.outlook.com
- 52.101.10.14 ↩ mail-bn6pr04cu00206.inbound.protection.outlook.com
- 52.101.50.4 ↩ mail-co1pr03cu00404.inbound.protection.outlook.com
- 52.101.194.4 ↩ mail-ch4pr04cu00104.inbound.protection.outlook.com
- 2a01:111:f403:f90f::1 ↩ mail-sa9pr04cu00201.inbound.protection.outlook.com
- 2a01:111:f403:c91d::a ↩ mail-co1pr21cu00202.inbound.protection.outlook.com
- 2a01:111:f403:c91d::b ↩ mail-mw2pr02cu00603.inbound.protection.outlook.com
- 2a01:111:f403:f912:: ↩ mail-cy5pr03cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
nso133.cloudplatformpro.com hostmaster.bestmailing.com 2025011105 7200 300 1209600 10800
Primary NS (mname)
nso133.cloudplatformpro.com
Admin Email (rname)
hostmaster@bestmailing.com
Serial
2025011105
Refresh
7200s
Retry
300s
Expire
1209600s
Minimum TTL
10800s
Nameservers (NS)
nso138.cloudplatformpro.com
nso133.cloudplatformpro.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
default._domainkey
⚠ Public key (p=) missing in DKIM record for selector selector1.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 include:spf.protection.outlook.com -all
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