pfeiffer.edu

Valid Email Server
Domain Lookup › pfeiffer.edu

Domain Overview

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

Checked via [email protected] · 2026-03-21 03:50:12 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

  • pfeiffer-edu.mail.protection.outlook.com: 0

A / AAAA Records

  • 66.135.22.232 ↩ 66-135-22-232.constant.com
  • 2001:19f0:1000:6a85:5400:4ff:fe92:aeda ↩ pfeiffer.wpmudev.host

Mail Server IPs

  • 52.101.10.5 ↩ mail-bn6pr04cu00105.inbound.protection.outlook.com
  • 52.101.11.3 ↩ mail-sn1pr0501cu00103.inbound.protection.outlook.com
  • 52.101.41.21 ↩ mail-sj2pr05cu00305.inbound.protection.outlook.com
  • 52.101.9.0 ↩ mail-bl2pr02cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:c922:: ↩ mail-bl0pr03cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:f804::3 ↩ mail-co1pr03cu00403.inbound.protection.outlook.com
  • 2a01:111:f403:c902::3 ↩ mail-sj0pr03cu01703.inbound.protection.outlook.com
  • 2a01:111:f403:f805::1 ↩ mail-co1pr03cu00301.inbound.protection.outlook.com

SOA Record

Raw SOA jean.ns.cloudflare.com dns.cloudflare.com 2398549927 10000 2400 604800 1800
Primary NS (mname)
jean.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398549927
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

jean.ns.cloudflare.com
justin.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 ip4:3.7.127.96 ip4:3.7.196.96 ip4:40.92.0.0/15 ip4:52.203.5.138 ip4:52.62.151.40 ip4:3.25.47.0/29 ip4:3.7.25.40/29 ip4:52.66.154.99 ip4:35.158.71.15 ip4:13.237.4.248 ip4:51.4.80.0/27 ip4:51.5.80.0/27 ip4:51.5.72.0/24 ip4:51.4.72.0/24 ip4:52.100.0.0/14 ip4:35.158.67.243 ip4:18.158.161.97 ip4:3.64.95.16/29 ip4:13.127.153.86 ip4:13.127.210.61 ip4:104.47.0.0/17 ip4:40.107.0.0/16 ip4:18.235.53.110 include:_s0.pfeiffer.edu -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

DKIM Selectors

✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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
  • apple-domain-verification=xwaFe6E5SnEgHjdV
  • facebook-domain-verification=bc14s3wjltd4uv9hssnpd74xq302xh
  • google-site-verification=3eWI0wWMgEfpUvFbalo5j9krVesrwhFEDqUAWDcuFjk
  • google-site-verification=xsSktGu76ymonE6mWhlvPWp8ZXYsagAYbp0yfRr_Uco
  • SPFv=spf1 ip4:3.7.127.96 ip4:3.7.196.96 ip4:40.92.0.0/15 ip4:52.203.5.138 ip4:52.62.151.40 ip4:3.25.47.0/29 ip4:3.7.25.40/29 ip4:52.66.154.99 ip4:35.158.71.15 ip4:13.237.4.248 ip4:51.4.80.0/27 ip4:51.5.80.0/27 ip4:51.5.72.0/24 ip4:51.4.72.0/24 ip4:52.100.0.0/14 ip4:35.158.67.243 ip4:18.158.161.97 ip4:3.64.95.16/29 ip4:13.127.153.86 ip4:13.127.210.61 ip4:104.47.0.0/17 ip4:40.107.0.0/16 ip4:18.235.53.110 include:_s0.pfeiffer.edu -all
  • 74M5ZY4EWDNBY7A6YGRCJ5S21L76ZMFY9VICL4I8X
  • ZOOM_verify_A7JoPu_ySgSum25kR9l5MQ
  • adobe-idp-site-verification=148eaeff35e3647344451c99ceac27e5a2d0652a61b4c49f293260a6e58d55cd
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