Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
firstsw.com
Yes
✓ Yes
Proofpoint
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-17 23:01:31 UTC · ↺ Refresh
MX Hostnames
- mxa-00188502.gslb.pphosted.com
- mxb-00188502.gslb.pphosted.com
MX Priorities
- mxa-00188502.gslb.pphosted.com: 10
- mxb-00188502.gslb.pphosted.com: 10
A / AAAA Records
- 204.109.41.189 ↩ healthcare.firstsw.com
Mail Server IPs
- 148.163.157.22 ↩ mx0a-00188502.pphosted.com
SOA Record
Raw SOA
edns2.ultradns.com domains.hilltop-holdings.com 2019091236 900 600 86400 3600
Primary NS (mname)
edns2.ultradns.com
Admin Email (rname)
domains@hilltop-holdings.com
Serial
2019091236
Refresh
900s
Retry
600s
Expire
86400s
Minimum TTL
3600s
Nameservers (NS)
edns2.ultradns.biz
edns2.ultradns.com
edns2.ultradns.net
edns2.ultradns.org
SPF Record
✓ Soft Fail (~all)
v=spf1 mx include:spf-00188502.pphosted.com include:spf.z154.zixworks.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;sp=reject;fo=1;rua=mailto:[email protected];ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- Qy9h0WrABJsUwPYONIxDeaqXWwEBdQwkJh1BI6OS04cQziZzAykKPtDGCcmuq6eaYatU5dQkIUpKkiizrHRX6A==
- XyseYGBqRUcRjsULK7SUAJ8UJF7R5fLjoYiSMaPaI993eFGjKpQ705gwqUbU1wyRHEYWBKbhj/hfrNM9qmIv3A==
- MS=ms86152036
- SPFv=spf1 mx include:spf-00188502.pphosted.com include:spf.z154.zixworks.com ~all
Full email verification for firstsw.com
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