Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
alvincollege.edu
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 19:05:43 UTC · ↺ Refresh
MX Hostnames
- d138968b.ess.barracudanetworks.com
- d138968a.ess.barracudanetworks.com
MX Priorities
- d138968b.ess.barracudanetworks.com: 10
- d138968a.ess.barracudanetworks.com: 0
A / AAAA Records
- 52.73.2.219 ↩ ec2-52-73-2-219.compute-1.amazonaws.com
- 34.236.193.193 ↩ ec2-34-236-193-193.compute-1.amazonaws.com
- 3.209.26.193 ↩ ec2-3-209-26-193.compute-1.amazonaws.com
Mail Server IPs
- 209.222.82.252 ↩ mail.ess.barracuda.com
- 209.222.82.255 ↩ mail.ess.barracuda.com
- 209.222.82.253 ↩ mail.ess.barracuda.com
SOA Record
Raw SOA
dns51.cloudns.net postmaster.alvincollege.edu 2026032306 1800 600 1209600 60
Primary NS (mname)
dns51.cloudns.net
Admin Email (rname)
postmaster@alvincollege.edu
Serial
2026032306
Refresh
1800s
Retry
600s
Expire
1209600s
Minimum TTL
60s
Nameservers (NS)
dns53.cloudns.net
dns52.cloudns.net
dns54.cloudns.net
dns51.cloudns.net
SPF Record
✓ Strict (-all)
v=spf1 ip4:64.235.144.0/20 ip4:209.222.80.0/21 ip4:50.234.8.120 ip4:198.187.196.100 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com include:_tuf-spf.touchnet.com include:_spf.bbnotify.net -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;pct=100;rua=mailto:[email protected],mailto:[email protected];ruf=mailto:[email protected],mailto:[email protected];ri=86400;fo=1;
~ 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: 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
8 records- UQun4VYnQs5vYFYmb5CS5FjqHl6Wyn1MsHFWt+w0o3VlLb/ZG5OkoPGFHq0vqZF3mPTEJ6Rt8Eewu04IK6PhzA==
- i66b2erant145ntl9nkkrig5k9
- MS=ms31901579
- apple-domain-verification=84PW5qfaJJK1I63g
- SPFv=spf1 ip4:64.235.144.0/20 ip4:209.222.80.0/21 ip4:50.234.8.120 ip4:198.187.196.100 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com include:_tuf-spf.touchnet.com include:_spf.bbnotify.net -all
- adobe-idp-site-verification=974e447b01a22a595761c4bbbe49bafff5e833a25f45f46f90a8c013714db956Record Value: adobe-idp-site-verification=974e447b01a22a595761c4bbbe49bafff5e833a25f45f46f90a8c013714db956
- 52dc87953baf256bc209cc3515a92131
- kodGBwqKUKo5boX/zeIrobCc3+YMiR2F8dMAnPIUssYJzdrbNBBbMfxJPYIpE5d0z83H9doS46niewuyrbGR5g==
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