Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
comfortsystemsva.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 17:29:22 UTC · ↺ Refresh
MX Hostnames
- d3177840.ess.barracudanetworks.com
- d317784a.ess.barracudanetworks.com
- d317784b.ess.barracudanetworks.com
- comfortsystemsva-com.mail.protection.outlook.com
MX Priorities
- d317784b.ess.barracudanetworks.com: 0
- d3177840.ess.barracudanetworks.com: 10
- d317784a.ess.barracudanetworks.com: 0
- comfortsystemsva-com.mail.protection.outlook.com: 99
A / AAAA Records
- 100.24.208.97
- 192.124.249.7
- 35.172.94.1
Mail Server IPs
- 209.222.82.252 ↩ mail.ess.barracuda.com
- 209.222.82.253 ↩ mail.ess.barracuda.com
- 209.222.82.255 ↩ mail.ess.barracuda.com
- 52.101.10.1 ↩ mail-bn6pr02cu00301.inbound.protection.outlook.com
- 52.101.50.1 ↩ mail-co1pr05cu00401.inbound.protection.outlook.com
- 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
- 52.101.9.5 ↩ mail-mn2pr04cu00205.inbound.protection.outlook.com
- 2a01:111:f403:c902::16 ↩ mail-byapr04cu00306.inbound.protection.outlook.com
- 2a01:111:f403:f802::1 ↩ mail-sj2pr05cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f90c:: ↩ mail-sn1pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f901::2
SOA Record
Raw SOA
ns29.domaincontrol.com dns.jomax.net 2026012700 28800 7200 604800 3600
Primary NS (mname)
ns29.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026012700
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns29.domaincontrol.com
ns30.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.ess.barracudanetworks.com include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; fo=1; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 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
4 records- google-site-verification=GOAbBJbqwBUW9cjO2EkMjWQzCc63ypLgE79EFkaaX6I
- v=verifydomain MS=5712826
- BPL=4406278
- SPFv=spf1 include:spf.ess.barracudanetworks.com include:spf.protection.outlook.com -all
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