Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
surgery.arizona.edu
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-06-03 07:54:14 UTC · ↺ Refresh
MX Hostnames
- usb-smtp-inbound-1.mimecast.com
- usb-smtp-inbound-2.mimecast.com
MX Priorities
- usb-smtp-inbound-1.mimecast.com: 10
- usb-smtp-inbound-2.mimecast.com: 10
A / AAAA Records
- 23.185.0.4 (no PTR)
- 2620:12a:8000::4 (no PTR)
- 2620:12a:8001::4 (no PTR)
Mail Server IPs
- 170.10.152.242 ↩ usb-smtp-delivery-2.mimecast.com
- 170.10.150.242 ↩ usb-smtp-delivery-2.mimecast.com
SOA Record
Raw SOA
ns-558.awsdns-05.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-558.awsdns-05.net
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1739.awsdns-25.co.uk
ns-301.awsdns-37.com
ns-558.awsdns-05.net
ns-1467.awsdns-55.org
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.med.arizona.edu -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected],mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected]; fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected],mailto:[email protected]
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- MS=398BA34B00D54021A9CAC4B89DD69CB22CC4A6EE
- SPFv=spf1 include:_spf.med.arizona.edu -all
- v=spf2.0/mfrom,pra include:_spf.med.arizona.edu -all
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