Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
andover.edu
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-21 08:10:50 UTC · ↺ Refresh
MX Hostnames
- andover-edu.mail.protection.outlook.com
MX Priorities
- andover-edu.mail.protection.outlook.com: 0
A / AAAA Records
- 13.248.160.137 ↩ aa089eb6179d1ae2b.awsglobalaccelerator.com
- 172.16.64.8 (no PTR)
- 76.223.34.124
Mail Server IPs
- 52.101.11.9 ↩ mail-sn1pr02cu00101.inbound.protection.outlook.com
- 52.101.194.4 ↩ mail-ch4pr04cu00104.inbound.protection.outlook.com
- 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
- 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f90d:: ↩ mail-sn1pr0501cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f908:: ↩ mail-bn1pr21cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f909:: ↩ mail-bn6pr04cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c931::1 ↩ mail-sa9pr03cu00201.inbound.protection.outlook.com
SOA Record
Raw SOA
titan.andover.edu postmaster.andover.edu 1315 10800 3600 2419200 300
Primary NS (mname)
titan.andover.edu
Admin Email (rname)
postmaster@andover.edu
Serial
1315
Refresh
10800s
Retry
3600s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
titan.andover.edu
auth2.dns.cogentco.com
auth1.dns.cogentco.com
helios.andover.edu
SPF Record
✓ Strict (-all)
v=spf1 ip4:198.140.204.70 include:spf.protection.outlook.com include:_spf.psm.knowbe4.com include:pcrsoft.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict 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
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
9 records- j83uU481pX6sNRF4w6tyXqw1HN7/zcGOPBo0bnduT1QnspvqqVYxCjMmI/pqP6Cj7ZdOPX52e7kyuCfVlBspdg==
- MS=C1709007F77A01B026019F2642E1038D80E1EEA1
- adobe-idp-site-verification=e07d6f423b2b9a4ff37622997ce3d74495c7ae9aa1d18d10fb84357b8bb6a495
- intersight=0d182f599467677dc7b40e1273bc1a9e6740332cf1287e849042282ce294f11c
- jpl65kkutrr17trbbkiu5kgk3f
- apple-domain-verification=01DE157oy32TEyuh
- VL40DPIE81KQWUN7JUIO8J9Z6H3GODR768TV9FG3
- 00DWC0000071Sz8=1TBWC00000006mz
- SPFv=spf1 ip4:198.140.204.70 include:spf.protection.outlook.com include:_spf.psm.knowbe4.com include:pcrsoft.com -all
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
See demo & docs
Deep verification
Full email verification for andover.edu
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
Get 1,000 Free Credits