Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
lwtech.edu
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-04 07:54:25 UTC · ↺ Refresh
MX Hostnames
- d252173a.ess.barracudanetworks.com
- lwtech-edu.mail.protection.outlook.com
- d252173b.ess.barracudanetworks.com
MX Priorities
- d252173a.ess.barracudanetworks.com: 10
- lwtech-edu.mail.protection.outlook.com: 100
- d252173b.ess.barracudanetworks.com: 20
A / AAAA Records
- 44.236.166.115
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
- 52.101.10.5 ↩ mail-bn6pr04cu00105.inbound.protection.outlook.com
- 52.101.41.0 ↩ mail-byapr05cu00400.inbound.protection.outlook.com
- 52.101.194.15 ↩ mail-ch4pr21cu00107.inbound.protection.outlook.com
- 40.93.192.4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
- 2a01:111:f403:c902::7 ↩ mail-sj0pr02cu00107.inbound.protection.outlook.com
- 2a01:111:f403:c903::3 ↩ mail-mw2pr02cu00503.inbound.protection.outlook.com
- 2a01:111:f403:c92c::4 ↩ mail-dm6pr05cu00404.inbound.protection.outlook.com
- 2a01:111:f403:c902::3
SOA Record
Raw SOA
ns-115.awsdns-14.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-115.awsdns-14.com
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-115.awsdns-14.com
ns-1492.awsdns-58.org
ns-1962.awsdns-53.co.uk
ns-908.awsdns-49.net
SPF Record
✓ Strict (-all)
v=spf1 ip4:168.156.192.35 ip4:199.255.192.0/22 ip4:199.127.232.0/22 ip4:54.240.0.0/18 ip4:69.169.224.0/20 ip4:168.156.9.200 include:spf.ess.barracudanetworks.com include:spf.protection.outlook.com include:spf1.lwtech.edu -all
📊 DNS lookups: 3/10
✓ 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
✓ 5 found
selector1._domainkey
selector2._domainkey
k1._domainkey
s1._domainkey
s2._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
7 records- ZD0k1G+3NT9lPGVeGfKKBPGDkGOqf0B2dQJ+43RZe6ID/yzwxDBY16ugfTjQDeQ51LESn9+AeYTbn9b05xJJHg==
- adobe-sign-verification=493dc80f56853600ee6e7bf5ce572d64
- apple-domain-verification=74ynmqCqX6Itfqxn
- apple-domain-verification=ySMUzRMHwse9mUHW
- google-site-verification=osRCXb-iBmLsDoinCTXDgajc8qMBK5EqW2ry5F_b1u
- oSelKASs2HS1cXSRnvUzSW8Yfg0q0hfcwxBqONCyKaeiqk2NEzommN5+b/wNv+1L9cU3sl0uFDk0c//o7pInjQ==
- SPFv=spf1 ip4:168.156.192.35 ip4:199.255.192.0/22 ip4:199.127.232.0/22 ip4:54.240.0.0/18 ip4:69.169.224.0/20 ip4:168.156.9.200 include:spf.ess.barracudanetworks.com include:spf.protection.outlook.com include:spf1.lwtech.edu -all
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