Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
mallardsystems.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-29 10:59:56 UTC · ↺ Refresh
MX Hostnames
- smtp.google.com
MX Priorities
- smtp.google.com: 1
A / AAAA Records
- 172.67.188.131 (no PTR)
- 104.21.40.226
- 2606:4700:3032::6815:28e2
- 2606:4700:3036::ac43:bc83
Mail Server IPs
- 142.251.167.26 ↩ ww-in-f26.1e100.net
- 142.251.167.27 ↩ ww-in-f27.1e100.net
- 192.178.155.27 ↩ yuiadrs-in-f27.1e100.net
- 192.178.155.26 ↩ yuiadrs-in-f26.1e100.net
- 172.253.139.27 ↩ yuiadsk-in-f27.1e100.net
- 2607:f8b0:4004:c23::1a ↩ yuiadrs-in-f26.1e100.net
- 2607:f8b0:4004:c1d::1a ↩ ww-in-f26.1e100.net
- 2607:f8b0:4004:c1d::1b ↩ ww-in-f27.1e100.net
- 2607:f8b0:4004:c23::1b ↩ yuiadrs-in-f27.1e100.net
SOA Record
Raw SOA
autumn.ns.cloudflare.com dns.cloudflare.com 2398703919 10000 2400 604800 1800
Primary NS (mname)
autumn.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398703919
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
camilo.ns.cloudflare.com
autumn.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.google.com include:_spf.salesforce.com include:sendgrid.net ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; pct=50; sp=quarantine
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
⚠ Policy applies to 50% of failing messages only
DKIM Selectors
✓ 1 found
google._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- NETORG6116657.onmicrosoft.com
- google-site-verification=9M3zxg7u7RwtmAytkZhklEJb6qZUFtz87yZem1eJXtw
- google-site-verification=oLyZTe5y28jyeqieAI5zngaM9RUvU6FycSjojWjQFYM
- SPFv=spf1 include:_spf.google.com include:_spf.salesforce.com include:sendgrid.net ~all
Full email verification for mallardsystems.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits