Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
frontlineed.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-04 23:54:16 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-2.mimecast.com
- us-smtp-inbound-1.mimecast.com
MX Priorities
- us-smtp-inbound-1.mimecast.com: 10
- us-smtp-inbound-2.mimecast.com: 10
A / AAAA Records
- 141.193.213.11 (no PTR)
- 141.193.213.10 (no PTR)
Mail Server IPs
- 170.10.132.242 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-1.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-2.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-1.mimecast.com
SOA Record
Raw SOA
ns-814.awsdns-37.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-814.awsdns-37.net
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-505.awsdns-63.com
ns-814.awsdns-37.net
ns-1078.awsdns-06.org
ns-1812.awsdns-34.co.uk
SPF Record
✓ Strict (-all)
v=spf1 a ip4:216.87.90.230 ip4:216.83.185.44 ip4:216.83.185.36 ip4:168.245.31.195 ip4:35.182.207.233 include:spf.protection.outlook.com include:us._netblocks.mimecast.com include:mktomail.com include:_spf.salesforce.com include:mail.zendesk.com -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected]; sp=reject; fo=1; ri=86400
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- SPFv=spf1 a ip4:216.87.90.230 ip4:216.83.185.44 ip4:216.83.185.36 ip4:168.245.31.195 ip4:35.182.207.233 include:spf.protection.outlook.com include:us._netblocks.mimecast.com include:mktomail.com include:_spf.salesforce.com include:mail.zendesk.com -all
- atlassian-domain-verification=YzkAItS46Qy9a+ODRCv59QzJxThGzaO4XNCAbqc233H2Vd7M6xQHfqAQvfQP/wKm
- pendo-domain-verification=of0LFkszaPfgzhmQ02Lvr_Heb5Y
- status-page-domain-verification=4042fvvs1mqn
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