Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
threelineshipping.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-22 19:50:49 UTC · ↺ Refresh
MX Hostnames
- threelineshipping-com.mail.protection.outlook.com
MX Priorities
- threelineshipping-com.mail.protection.outlook.com: 0
A / AAAA Records
- 172.67.128.131 (no PTR)
- 104.21.1.43 (no PTR)
- 2606:4700:3032::6815:12b
- 2606:4700:3030::ac43:8083
Mail Server IPs
- 52.101.147.1 ↩ mail-au1p273cu00101.inbound.protection.outlook.com
- 52.101.148.1 ↩ mail-dx1p273cu00301.inbound.protection.outlook.com
- 52.101.148.13 ↩ mail-dx2p273cu00205.inbound.protection.outlook.com
- 52.101.148.3 ↩ mail-dx3p273cu00103.inbound.protection.outlook.com
- 2a01:111:f403:cc30::3 ↩ mail-dx2p273cu00203.inbound.protection.outlook.com
- 2a01:111:f403:cc30::1 ↩ mail-dx3p273cu00101.inbound.protection.outlook.com
- 2a01:111:f403:cc2f:: ↩ mail-au1p273cu00100.inbound.protection.outlook.com
- 2a01:111:f403:cc30:: ↩ mail-dx1p273cu00300.inbound.protection.outlook.com
SOA Record
Raw SOA
cory.ns.cloudflare.com dns.cloudflare.com 2399337727 10000 2400 604800 1800
Primary NS (mname)
cory.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399337727
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
elinore.ns.cloudflare.com
cory.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.us.sendclean.net include:sendclean.net include:spf.protection.outlook.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p= reject;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· 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- SPFv=spf1 include:_spf.us.sendclean.net include:sendclean.net include:spf.protection.outlook.com ~all
- MS=BA39EEC87EBF2E4E4A93D6D90E30965D2F705EFF
- google-site-verification=7hHnXRtXh-bFQ58F1cKHGxLuNWqOEE3aZiKSu8e3rjs
Full email verification for threelineshipping.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits