citycollege.edu

Valid Email Server
Domain Lookup › citycollege.edu

Domain Overview

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

Checked via [email protected] · 2026-03-21 05:23:55 UTC · ↺ Refresh

MX Hostnames

  • citycollege-edu.mail.eo.outlook.com

MX Priorities

  • citycollege-edu.mail.eo.outlook.com: 0

A / AAAA Records

No A/AAAA records found.

Mail Server IPs

  • 52.101.10.8 ↩ mail-bn1pr04cu00100.inbound.protection.outlook.com
  • 52.101.41.28 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
  • 52.101.9.11 ↩ mail-bl2pr04cu00103.inbound.protection.outlook.com
  • 52.101.9.12 ↩ mail-bl0pr05cu00504.inbound.protection.outlook.com
  • 2a01:111:f403:c803:: ↩ mail-bn1pr21cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:c922::1 ↩ mail-bl0pr05cu00501.inbound.protection.outlook.com
  • 2a01:111:f403:f802::3 ↩ mail-sj0pr03cu01403.inbound.protection.outlook.com
  • 2a01:111:f403:f90d::1 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com

SOA Record

Raw SOA laylah.ns.cloudflare.com dns.cloudflare.com 2399218744 10000 2400 604800 1800
Primary NS (mname)
laylah.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399218744
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

tadeo.ns.cloudflare.com
laylah.ns.cloudflare.com

SPF Record

✗ Missing

No SPF record — domain is unprotected against spoofing.

⚠ No SPF record found. Email servers cannot verify authorized senders.

DMARC Record

✗ p=none
v=DMARC1; p=none; pct=100; rua=mailto:[email protected]; sp=none; aspf=r;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none

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

13 records
  • 6G/7tm2ad63KRNaGw2FDxHdJ8GHJOHStKcBVry/8+WNPfAWrlhogq6m7AUVeBrBmB/ZaQ5DZcbaxL+aZnV2DIg==
  • Foxit-domain-verification=ba0c8fbb0ebf9e508ea0ee16473abc46
  • MS=ms17794488
  • MS=ms57921868
  • MS=ms62753087
  • MS=ms84079139
  • MS=ms91531140
  • google-site-verification=P0d-RgHQ50fa-VwfIY20BQswwk_xqK4tBwzqE8yhEDA
  • google-site-verification=ketMrrFeag5O0wu3fh_ZFqHcXTq_sJmpni34bs7fhjE
  • google-site-verification=m0kE6F1g8QJbznssvzNd51zqKWVMQxPmtA_D-dIRRGw
  • m8nDlyGgslMdw/pY+5WktVLby4DcoMHfKURXAthJ9YcCl/UvR9O2fyGrV2SbdDf9TSx/aWdpqRSpGZT4ChumZA==
  • rqjbo8v6le4k9amr3n2ao2m36h
  • u2ml72c0bhjgvbsdv7o5ko8nqs
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