Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
crain.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-04 08:18:17 UTC · ↺ Refresh
MX Hostnames
- usb-smtp-inbound-1.mimecast.com
- usb-smtp-inbound-2.mimecast.com
MX Priorities
- usb-smtp-inbound-2.mimecast.com: 10
- usb-smtp-inbound-1.mimecast.com: 10
A / AAAA Records
- 3.138.73.154 ↩ ec2-3-138-73-154.us-east-2.compute.amazonaws.com
Mail Server IPs
- 170.10.152.242 ↩ usb-smtp-delivery-2.mimecast.com
- 170.10.150.242 ↩ usb-smtp-delivery-2.mimecast.com
SOA Record
Raw SOA
ns-669.awsdns-19.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-669.awsdns-19.net
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1726.awsdns-23.co.uk
ns-200.awsdns-25.com
ns-669.awsdns-19.net
ns-1444.awsdns-52.org
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:72.35.20.197 ip4:52.6.112.187 ip4:104.198.14.52 ip4:205.159.47.0/24 ip4:66.238.170.32/28 ip4:205.246.0.131/32 ip4:161.77.55.120/29 ip4:161.77.58.124/32 ip4:207.166.92.11 ip4:207.166.95.11 ip4:207.166.101.207 ip4:207.166.104.207 ip4:72.166.182.17 ip4:192.254.116.40 include:spf.protection.outlook.com include:_spf.psm.knowbe4.com include:_spf.atlassian.net include:aspmx.sailthru.com include:_spf.salesforce.com include:_spf.qualtrics.com include:usb._netblocks.mimecast.com ~all
📊 DNS lookups: 7/10
~ Soft fail (~all) — moderate 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
✓ 5 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
zoho._domainkey
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
9 records- bw=ZlWe1gSmMSG5lRfDFbUA6DiD3crr5l7rWmEHviKW1PbH
- facebook-domain-verification=p2h4wxtvcjuajowvea30p570o4rucr
- google-site-verification=X6jepP0jmAy59CZIptZojF1IaYC6F6W5JiX7MQXkDhQ
- SPFv=spf1 ip4:72.35.20.197 ip4:52.6.112.187 ip4:104.198.14.52 ip4:205.159.47.0/24 ip4:66.238.170.32/28 ip4:205.246.0.131/32 ip4:161.77.55.120/29 ip4:161.77.58.124/32 ip4:207.166.92.11 ip4:207.166.95.11 ip4:207.166.101.207 ip4:207.166.104.207 ip4:72.166.182.17 ip4:192.254.116.40 include:spf.protection.outlook.com include:_spf.psm.knowbe4.com include:_spf.atlassian.net include:aspmx.sailthru.com include:_spf.salesforce.com include:_spf.qualtrics.com include:usb._netblocks.mimecast.com ~all
- yahoo-verification-key=u9l01x5TW0bTwkddExj1Rj70U9bboTtsy7je+6Qj5L4=
- zoho-verification=zb15349644.zmverify.zoho.com
- MS=ms79121027
- atlassian-domain-verification=YLCut0EIFcoaFgLbhOpSkB8nDu8sZmflCLdCoiaD9HHi4wPfxIDkBNGX2Ye3Alvkapple-domain-verification=i4AaSflFpjg5vuTW
- bw=3vLQGWt05zPXcCuAIscOM5u4Y9qdmtNhSFTIOFdJMM2R
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