Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
johnstonewaregroup.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 03:33:21 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-1.mimecast.com
- us-smtp-inbound-2.mimecast.com
MX Priorities
- us-smtp-inbound-1.mimecast.com: 10
- us-smtp-inbound-2.mimecast.com: 10
A / AAAA Records
- 74.249.105.210 (no PTR)
Mail Server IPs
- 170.10.132.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-2.mimecast.com
SOA Record
Raw SOA
ns09.domaincontrol.com dns.jomax.net 2026030901 28800 7200 604800 3600
Primary NS (mname)
ns09.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026030901
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns09.domaincontrol.com
ns10.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:12.11.37.134 ip4:72.158.110.180 ip4:12.11.37.133 ip4:32.140.35.82 ip4:129.33.240.172 ip4:129.41.172.128 ip4:129.41.172.129 ip4:129.41.172.130 ip4:8.41.137.32 a:mail.johnstonesupply.com include:_spf.billtrust.com include:zcsend.net include:transmail.net include:spf.protection.outlook.com include:_spf.psm.knowbe4.com include:spf.exclaimer.net include:spf.zoho.com include:us._netblocks.mimecast.com -all
📊 DNS lookups: 9/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; pct=50; fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
⚠ Policy applies to 50% of failing messages only
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
mail._domainkey
✓ Public key: 392 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
5 records- SPFv=spf1 ip4:12.11.37.134 ip4:72.158.110.180 ip4:12.11.37.133 ip4:32.140.35.82 ip4:129.33.240.172 ip4:129.41.172.128 ip4:129.41.172.129 ip4:129.41.172.130 ip4:8.41.137.32 a:mail.johnstonesupply.com include:_spf.billtrust.com include:zcsend.net include:transmail.net include:spf.protection.outlook.com include:_spf.psm.knowbe4.com include:spf.exclaimer.net include:spf.zoho.com include:us._netblocks.mimecast.com -all
- zoho-verification=zb45044796.zmverify.zoho.com
- apple-domain-verification=CSiWuYWr2r3fnfF3
- v=verifydomain MS=4580394
- 7ABwwgf/KX/Tqay2+uqfKIBoAJtu5iIO3R3oiyOAmZPwn7zpwOv8bSfXiqJvk9XL7pltL8eUOkXbUKU9dy1cgQ==
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