jdsu.com

Valid Email Server
Domain Lookup › jdsu.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
jdsu.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-04-03 19:02:10 UTC · ↺ Refresh

MX Hostnames

  • jdsu-com.mail.protection.outlook.com

MX Priorities

  • jdsu-com.mail.protection.outlook.com: 10

A / AAAA Records

  • 209.59.168.237 (no PTR)

Mail Server IPs

  • 52.101.42.16 ↩ mail-co1pr05cu00300.inbound.protection.outlook.com
  • 52.101.194.15 ↩ mail-ch4pr21cu00107.inbound.protection.outlook.com
  • 52.101.41.4 ↩ mail-sj2pr05cu00204.inbound.protection.outlook.com
  • 52.101.10.1 ↩ mail-bn6pr02cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:f804::3 ↩ mail-co1pr03cu00403.inbound.protection.outlook.com
  • 2a01:111:f403:c931:: ↩ mail-sn1pr02cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:c922:: ↩ mail-bl0pr03cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:c922::2 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com

SOA Record

Raw SOA ns-521.awsdns-01.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-521.awsdns-01.net
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-55.awsdns-06.com
ns-1129.awsdns-13.org
ns-1658.awsdns-15.co.uk
ns-521.awsdns-01.net

SPF Record

✓ Strict (-all)
v=spf1 mx include:mktomail.com include:spf-00158d01.pphosted.com ip4:157.234.0.0/16 ip4:141.169.0.0/16 ip4:54.225.204.45 ip4:54.225.180.69 ip4:45.33.78.70 ip4:96.43.144.0/20 ip4:136.146.0.0/15 ip4:204.14.232.0/21 ip4:35.156.43.248 ip4:35.156.80.33 -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1;p=reject;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ DKIM properly configured for selector: selector1

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

All TXT Records

5 records
  • google-site-verification=Vv-V8ut9LEtmyJWZ9bQpw-e-odlH5XwkgfraKVqcIKU
  • SPFv=spf1 mx include:mktomail.com include:spf-00158d01.pphosted.com ip4:157.234.0.0/16 ip4:141.169.0.0/16 ip4:54.225.204.45 ip4:54.225.180.69 ip4:45.33.78.70 ip4:96.43.144.0/20 ip4:136.146.0.0/15 ip4:204.14.232.0/21 ip4:35.156.43.248 ip4:35.156.80.33 -all
  • vLH+x5iSO4FJSUXJ0oNkumK2hWo89UVBULBTshbWhssYYD6ZDzPpFCX6Sx1pDpkPm4tEO247Hil0AIm39OCOGw==
  • MS=ms12097127
  • MS=ms72865669
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