Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
theosborn.org
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 02:38:26 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-1.mimecast.com
- us-smtp-inbound-2.mimecast.com
MX Priorities
- us-smtp-inbound-1.mimecast.com: 10
- us-smtp-inbound-2.mimecast.com: 10
A / AAAA Records
- 141.193.213.10 (no PTR)
Mail Server IPs
- 170.10.128.141 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-2.mimecast.com
SOA Record
Raw SOA
ns25.worldnic.com namehost.worldnic.com 126032114 10800 3600 604800 3600
Primary NS (mname)
ns25.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126032114
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns25.worldnic.com
ns26.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:216.187.25.19 ip4:216.187.25.18 include:spf.protection.outlook.com include:us._netblocks.mimecast.com include:spf.advantageanywhere.com include:spf.us.exclaimer.net include:_spf.psm.knowbe4.com -all
📊 DNS lookups: 5/10
✓ 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
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
8 records- tei2qri59m72o29tkscbugf9qq
- google-site-verification=CCufaXlaXaqo3fNgzbaA9JDBJMLDZCXAsd0wdvGkSSw
- n951pdt7lni693khejqe5a9pr5
- otrrpf2u82kritndsdatbbq0f9
- 63u2u7fdmm3ocjmpd58l95pf6m
- MS=5BB2AE662B5291B4387F77523C885F8E69595811
- huft6shj1o84v23dnqa6a9jf0h
- SPFv=spf1 ip4:216.187.25.19 ip4:216.187.25.18 include:spf.protection.outlook.com include:us._netblocks.mimecast.com include:spf.advantageanywhere.com include:spf.us.exclaimer.net include:_spf.psm.knowbe4.com -all
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