Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
olysteel.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 02:59:23 UTC · ↺ Refresh
MX Hostnames
- mx1.dnsmadeeasy.com
- us-smtp-inbound-1.mimecast.com
- mx2.dnsmadeeasy.com
- us-smtp-inbound-2.mimecast.com
- mx3.dnsmadeeasy.com
MX Priorities
- mx3.dnsmadeeasy.com: 50
- mx2.dnsmadeeasy.com: 40
- mx1.dnsmadeeasy.com: 30
- us-smtp-inbound-1.mimecast.com: 10
- us-smtp-inbound-2.mimecast.com: 10
A / AAAA Records
- 35.172.94.1
- 100.24.208.97
Mail Server IPs
- 208.94.150.197 ↩ mx3.dnsmadeeasy.com
- 208.94.150.201 ↩ mx2.dnsmadeeasy.com
- 208.80.120.10 ↩ mx1.dnsmadeeasy.com
- 208.80.120.11 ↩ mx1.dnsmadeeasy.com
- 170.10.132.141 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-1.mimecast.com
SOA Record
Raw SOA
ns10.digicertdns.com dns.digicertdns.com 2009010111 43200 3600 1209600 180
Primary NS (mname)
ns10.digicertdns.com
Admin Email (rname)
dns@digicertdns.com
Serial
2009010111
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s
Nameservers (NS)
ns0.dnsmadeeasy.com
ns2.dnsmadeeasy.com
ns1.dnsmadeeasy.com
ns4.dnsmadeeasy.com
ns3.dnsmadeeasy.com
SPF Record
✓ Strict (-all)
v=spf1 include:us._netblocks.mimecast.com include:spf.protection.outlook.com include:spf.mandrillapp.com include:_spf.psm.knowbe4.com ip4:64.140.19.164 ip4:64.140.19.166 ip4:208.86.168.0/24 ip4:208.92.211.138 ip4:208.65.128.195 ip4:66.218.176.138 ip4:67.225.252.173 ip4:64.140.19.169 ip4:208.65.128.207 ip4:208.86.186.7 -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 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
3 records- MS=ms14322537
- google-site-verification=5zM3klQvSxp22EW_bKyB8tRJCxIziwBKzaVPdjTNwsQ
- SPFv=spf1 include:us._netblocks.mimecast.com include:spf.protection.outlook.com include:spf.mandrillapp.com include:_spf.psm.knowbe4.com ip4:64.140.19.164 ip4:64.140.19.166 ip4:208.86.168.0/24 ip4:208.92.211.138 ip4:208.65.128.195 ip4:66.218.176.138 ip4:67.225.252.173 ip4:64.140.19.169 ip4:208.65.128.207 ip4:208.86.186.7 -all
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