Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
shelterltd.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 06:31:34 UTC · ↺ Refresh
MX Hostnames
- pj-networks-mx1.titanhq.com
MX Priorities
- pj-networks-mx1.titanhq.com: 0
A / AAAA Records
- 198.185.159.144 (no PTR)
- 198.185.159.145 (no PTR)
- 198.49.23.144 (no PTR)
- 198.49.23.145 (no PTR)
Mail Server IPs
- 3.23.166.50 ↩ us3-smtp2.titanhq.com
- 3.145.228.208 ↩ us3-smtp2.titanhq.com
- 18.219.82.30 ↩ us3-smtp1.titanhq.com
- 52.14.176.194 ↩ us3-smtp1.titanhq.com
SOA Record
Raw SOA
dns1.p01.nsone.net hostmaster.nsone.net 1739550668 43200 7200 1209600 3600
Primary NS (mname)
dns1.p01.nsone.net
Admin Email (rname)
hostmaster@nsone.net
Serial
1739550668
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
dns1.p04.nsone.net
dns2.p04.nsone.net
dns3.p04.nsone.net
dns4.p04.nsone.net
ns01.squarespacedns.com
ns02.squarespacedns.com
ns03.squarespacedns.com
ns04.squarespacedns.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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
2 records- SPFv=spf1 include:spf.protection.outlook.com -all
- MS=ms20093987
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