Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sauer-inc.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 20:16:40 UTC · ↺ Refresh
MX Hostnames
- d171009a.ess.barracudanetworks.com
- d171009b.ess.barracudanetworks.com
MX Priorities
- d171009b.ess.barracudanetworks.com: 5
- d171009a.ess.barracudanetworks.com: 0
A / AAAA Records
- 104.21.73.90 (no PTR)
- 172.67.189.85 (no PTR)
- 2606:4700:3035::6815:495a (no PTR)
- 2606:4700:3030::ac43:bd55 (no PTR)
Mail Server IPs
- 209.222.82.253 ↩ mail.ess.barracuda.com
- 209.222.82.252 ↩ mail.ess.barracuda.com
- 209.222.82.255 ↩ mail.ess.barracuda.com
SOA Record
Raw SOA
colin.ns.cloudflare.com dns.cloudflare.com 2397793947 10000 2400 604800 1800
Primary NS (mname)
colin.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2397793947
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
colin.ns.cloudflare.com
fiona.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:50.235.243.60 ip4:50.235.243.59 include:SPF.Protection.Outlook.com include:spf.ess.barracudanetworks.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
7 records- a16q347aahsjn4thd6crgb80h7
- iro3hjovo2u8tvm1s91ltrv2dg
- n1t57bgn0u752qpbqkf86ocdpq
- SPFv=spf1 ip4:50.235.243.60 ip4:50.235.243.59 include:SPF.Protection.Outlook.com include:spf.ess.barracudanetworks.com -all
- 12ega36ln25pv5ahq61dl1m7kd
- BPL=7165453
- MS=ms43420570
Full email verification for sauer-inc.com
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