Domain Overview
DNS: ✓ 2d ago
Checker: ✓ 2d ago
guardian-service.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-19 11:08:32 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-2.mimecast.com
- us-smtp-inbound-1.mimecast.com
MX Priorities
- us-smtp-inbound-2.mimecast.com: 1
- us-smtp-inbound-1.mimecast.com: 0
A / AAAA Records
- 35.185.76.107 ↩ 107.76.185.35.bc.googleusercontent.com
Mail Server IPs
- 170.10.132.141 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-1.mimecast.com
SOA Record
Raw SOA
ns-219.awsdns-27.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-219.awsdns-27.com
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-219.awsdns-27.com
ns-836.awsdns-40.net
ns-1372.awsdns-43.org
ns-1874.awsdns-42.co.uk
SPF Record
✓ Soft Fail (~all)
v=spf1 include:us._netblocks.mimecast.com mx ptr ip4:216.150.147.43 ip4:216.150.147.40 ip4:216.150.147.42 include:auth.msgapp.com include:spf.protection.outlook.com include:spf.happyfox.com include:_spf.myteamasp.com ~all
📊 DNS lookups: 7/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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- apple-domain-verification=TSInmcWV8Ac4lOTm
- SPFv=spf1 include:us._netblocks.mimecast.com mx ptr ip4:216.150.147.43 ip4:216.150.147.40 ip4:216.150.147.42 include:auth.msgapp.com include:spf.protection.outlook.com include:spf.happyfox.com include:_spf.myteamasp.com ~all
- MS=ms69442856
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