Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
jfbrennan.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 22:24:15 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-1.mimecast.com
- us-smtp-inbound-2.mimecast.com
MX Priorities
- us-smtp-inbound-2.mimecast.com: 10
- us-smtp-inbound-1.mimecast.com: 10
A / AAAA Records
- 3.33.251.168 ↩ aec037177372cc6cd.awsglobalaccelerator.com
- 15.197.225.128 ↩ aec037177372cc6cd.awsglobalaccelerator.com
Mail Server IPs
- 170.10.128.221 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-1.mimecast.com
SOA Record
Raw SOA
ns49.domaincontrol.com dns.jomax.net 2026031400 28800 7200 604800 3600
Primary NS (mname)
ns49.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026031400
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns49.domaincontrol.com
ns50.domaincontrol.com
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx include:spf.protection.outlook.com include:panteramail.net include:_netblocks.mimecast.com include:spf.us.exclaimer.net ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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
13 records- lc32herv0kvjijoet5us1t1i5t
- v=verifydomain MS=ms74518254
- MS=ms74518254
- SPFv=spf1 a mx include:spf.protection.outlook.com include:panteramail.net include:_netblocks.mimecast.com include:spf.us.exclaimer.net ~all
- autodesk-domain-verification=koHXM-_vxW4Nfm3InO19
- apple-domain-verification=kkdkASFMkm2izpCD
- 400fde42-1575-38d3-e063-0100007f7036
- zSrnyZAYEM3WiNraafBNRYVRlxgSIWdC91UVWWVo//kd6wyy4IK0TovQpEiKBy9MXA7xISTmiLkHaY5hQmO3jw==
- Rv7OEwVBpPWL7ytE8DGTOZXz6aSnlhj4b9IP5ImePj8ibcj5ZrKXXcdAdssI8y0YU3eKgx6wRzpeMyCVmx/Hog==
- MS=ms68753638
- v=verifydomain MS=2127347
- autodesk-domain-verification=EDJQPsO-f2YQBdelbrr2
- include:123881.spf04.hubspotemail.net
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