harpercollege.edu

Valid Email Server
Domain Lookup › harpercollege.edu

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
harpercollege.edu
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-01 12:21:28 UTC · ↺ Refresh

Add email validation to your forms — free

Add our free script to block 10,000+ disposable domains + perform other checks. No signup, unlimited checks.

MX validation Disposable detection Role accounts
Add to your signup form
<script src="https://check.verifyswift.com/"></script>
One line · No registration · See full docs & demo → · Customize →

MX Hostnames

  • harpercollege-edu.mail.protection.outlook.com

MX Priorities

  • harpercollege-edu.mail.protection.outlook.com: 10

A / AAAA Records

  • 20.221.213.82 (no PTR)

Mail Server IPs

  • 52.101.11.2 ↩ mail-sn1pr03cu00102.inbound.protection.outlook.com
  • 40.93.192.1 ↩ mail-dm5pr02cu00201.inbound.protection.outlook.com
  • 52.101.194.15 ↩ mail-ch4pr21cu00107.inbound.protection.outlook.com
  • 52.101.8.34 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:c902::4 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
  • 2a01:111:f403:c901::1 ↩ mail-bl2pr04cu00201.inbound.protection.outlook.com
  • 2a01:111:f403:c902::5 ↩ mail-sj2pr05cu00505.inbound.protection.outlook.com
  • 2a01:111:f403:c801::1 ↩ mail-sn1pr0501cu00101.inbound.protection.outlook.com

SOA Record

Raw SOA ifirewall.harpercollege.edu netdevac.harper.cc.il.us 2026030602 10800 3600 1209600 86400
Primary NS (mname)
ifirewall.harpercollege.edu
Admin Email (rname)
netdevac@harper.cc.il.us
Serial
2026030602
Refresh
10800s
Retry
3600s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ifirewall.harpercollege.edu
auth01.ns.uu.net
ns1.illinois.net
ns2.illinois.net
auth60.ns.uu.net

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:outboundmail.blackbaud.net include:spf.constantcontact.com include:_spf.bbnotify.net include:_spf.salesforce.com include:spf_c.oraclecloud.com ip4:157.178.1.0/24 ip4:157.178.2.0/24 ip4:74.122.104.0/22 ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

10 records
  • MS=ms45222133
  • cisco-ci-domain-verification=46c6ca1a8f4418d59a18be147ebcdca0199dd959370c6117e16c718bf4c8a178
  • google-site-verification=eKkHmywuFDAD0IOO46vdRMPVPTXr9qktypIefej60p0
  • iOS-enroll=https://mdm.harpercollege.edu/rtc/ivems1/MDM/api/v1/enroll/IosEnroll
  • android-enroll=https://mdm.harpercollege.edu/rtc/ivems1/MDM/api/v1/enroll/AndroidEnroll
  • DKF9EEix2q7hBu657tNFdVlCvJDoOq0i2SB3/+y4FJDrzA4uxtZBGxxIXIzHWcJSmjw5bvDAtLWNyK386CXl2g==
  • adobe-idp-site-verification=5904bac6eb2de049fd930fba6044b52917d593b1a1dddf099dd9dc0db9f14c01
  • tst3
  • SPFv=spf1 include:spf.protection.outlook.com include:outboundmail.blackbaud.net include:spf.constantcontact.com include:_spf.bbnotify.net include:_spf.salesforce.com include:spf_c.oraclecloud.com ip4:157.178.1.0/24 ip4:157.178.2.0/24 ip4:74.122.104.0/22 ~all
  • apple-domain-verification=INxYuGaxIg8ug7q9
Free · No signup required
Add email validation to your forms

Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.

<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site · Customize →
See demo & docs
Deep verification
Full email verification for harpercollege.edu

SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.

No credit card required
Get 1,000 Free Credits