Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
hollingerequipment.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 12:51:29 UTC · ↺ Refresh
MX Hostnames
- mail3.ctipc.com
- mail2.ctipc.com
MX Priorities
- mail2.ctipc.com: 40
- mail3.ctipc.com: 10
A / AAAA Records
- 104.17.90.30 (no PTR)
Mail Server IPs
- 169.60.161.173 ↩ ad.a1.3ca9.ip4.static.sl-reverse.com
- 2607:f0d0:2701:19d:169:60:161:173 ↩ 3710.1610.0600.9610.d910.1072.0d0f.7062.ip6.static.sl-reverse.com
SOA Record
Raw SOA
ns1.ctipc.com admin.ctipc.com 2021091300 4900 240 2419200 300
Primary NS (mname)
ns1.ctipc.com
Admin Email (rname)
admin@ctipc.com
Serial
2021091300
Refresh
4900s
Retry
240s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
ns4.ctipc.com
ns1.ctipc.com
ns2.ctipc.com
ns3.ctipc.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:208.100.14.56/29 ip6:2607:f128:40:2500::0/64 ip4:169.60.161.168/29 ip6:2607:f0d0:2701:19d::0/64 ip4:75.126.252.40/29 ip6:2607:f0d0:2701:1aa::0/64 -all
📊 DNS lookups: 0/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;sp=reject;pct=100;adkim=s;aspf=s;fo=1:d:s;ruf=mailto:[email protected];rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 1 found
selector1._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
1 record- SPFv=spf1 ip4:208.100.14.56/29 ip6:2607:f128:40:2500::0/64 ip4:169.60.161.168/29 ip6:2607:f0d0:2701:19d::0/64 ip4:75.126.252.40/29 ip6:2607:f0d0:2701:1aa::0/64 -all
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