Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
nationalgrid.com
Yes
✓ Yes
Proofpoint
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-17 20:31:25 UTC · ↺ Refresh
MX Hostnames
- mxa-003cc501.gslb.pphosted.com
- mxb-003cc501.gslb.pphosted.com
MX Priorities
- mxa-003cc501.gslb.pphosted.com: 10
- mxb-003cc501.gslb.pphosted.com: 10
A / AAAA Records
- 104.17.1.192 (no PTR)
Mail Server IPs
- 205.220.160.89 ↩ mx0a-003cc501.pphosted.com
SOA Record
Raw SOA
ns01.nationalgrid.com hostmaster.pcn-inc.com 2016033376 10800 3600 2419200 900
Primary NS (mname)
ns01.nationalgrid.com
Admin Email (rname)
hostmaster@pcn-inc.com
Serial
2016033376
Refresh
10800s
Retry
3600s
Expire
2419200s
Minimum TTL
900s
Nameservers (NS)
ns02.nationalgrid.com
ns01.nationalgrid.com
SPF Record
✓ Strict (-all)
v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com include:spf-003cc501.pphosted.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected];adkim=s;aspf=s;fo=1
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
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
14 records- docusign=a9d4e08c-4237-4cb4-9b9c-cbc75f31a371
- atlassian-domain-verification=V5iSVcTvRs9SiHiGaKzNcNkKah0f8NIgxyvow7Y6saXUHdWLu8BN6pk2WT3Le3CH
- vmware-cloud-verification-353c0ddd-7653-49c7-9c83-5402710019a6
- atlassian-domain-verification=3VOkXGI7NlkY7FdwrEL09y8ejRCWJvSuNp3uT3AYxJNMzgP6ZyLG/VoFda4eb7VL
- zone-ownership-verification-0df82f54b108461fd4fc547d0745bfbb2b8eb39c72930d2f33ccf8740f6f7e13
- asv=d8a0ab46db70074a3e88625009d4fa38
- atlassian-domain-verification=xMpCN96LqrsiVZYVdSjhCait6isy1IPzij4XSFEwhhgxfHTLurFRzjcXiba1NBs5
- 2a0qtfvkiqjfjgo8bvklo44d72
- atlassian-domain-verification=6WuzSurvt6wbVtaeEybQQ3TgrUl2FGw22hUsjgzzUYA4/PE9r8J5p3BSiHpgV1q1
- atlassian-domain-verification=LuYBxwIaoOXbboBcM4KH14zxqwMjcJkfeyvEVQkuK7lkCplnOQ6ROj5iurZHXEIo
- SPFv=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com include:spf-003cc501.pphosted.com -all
- _daads5qmgh7zjjjwzj9x1icha6jzpn4
- canva-site-verification=ipfjoALWY2Z-sCIdY7VyAQ
- facebook-domain-verification=s0jppjah3i4nsmg904km7i1h8vev72
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