Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
firstalarm.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 09:18:44 UTC · ↺ Refresh
MX Hostnames
- mx1-us1.ppe-hosted.com
- mx2-us1.ppe-hosted.com
MX Priorities
- mx2-us1.ppe-hosted.com: 20
- mx1-us1.ppe-hosted.com: 10
A / AAAA Records
- 104.21.55.74 (no PTR)
- 172.67.170.188 (no PTR)
- 2606:4700:3035::ac43:aabc (no PTR)
- 2606:4700:3033::6815:374a (no PTR)
Mail Server IPs
- 148.163.129.51 ↩ mx2-us1.ppe-hosted.com
- 67.231.154.163 ↩ mx2-us1.ppe-hosted.com
- 67.231.154.162 ↩ mx1-us1.ppe-hosted.com
- 148.163.129.50 ↩ mx1-us1.ppe-hosted.com
SOA Record
Raw SOA
carioca.ns.cloudflare.com dns.cloudflare.com 2399272818 10000 2400 604800 1800
Primary NS (mname)
carioca.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399272818
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
carioca.ns.cloudflare.com
dexter.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 mx ptr ip4:24.104.76.110 ip4:209.182.201.45 include:_spf-us.ppe-hosted.com include:_spf.salesforce.com include:spf.protection.outlook.com ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected];fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
7 records- MS=9A96674CACD3A6390C2DB7DEC910364427F4F310
- MS=ms15014541
- MS=ms90246522
- docusign=f98e9215-6250-415b-93fa-4f660e1c9b15
- podt5mpkh3f534vfdj420mprsg
- tgei2bk7tqmj3m14op24iquuq
- SPFv=spf1 mx ptr ip4:24.104.76.110 ip4:209.182.201.45 include:_spf-us.ppe-hosted.com include:_spf.salesforce.com include:spf.protection.outlook.com ~all
Full email verification for firstalarm.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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