Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
duetgroup.net
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 17:31:47 UTC · ↺ Refresh
MX Hostnames
- eu-smtp-inbound-2.mimecast.com
- eu-smtp-inbound-1.mimecast.com
MX Priorities
- eu-smtp-inbound-2.mimecast.com: 10
- eu-smtp-inbound-1.mimecast.com: 10
A / AAAA Records
- 104.26.0.47 (no PTR)
- 104.26.1.47 (no PTR)
- 172.67.69.197 (no PTR)
- 2606:4700:20::681a:12f (no PTR)
- 2606:4700:20::681a:2f
- 2606:4700:20::ac43:45c5
Mail Server IPs
- 91.220.42.241 ↩ eu-smtp-inbound-1.mimecast.com
- 91.220.42.201 ↩ eu-smtp-inbound-1.mimecast.com
- 195.130.217.211 ↩ eu-smtp-inbound-2.mimecast.com
- 195.130.217.201 ↩ eu-smtp-inbound-1.mimecast.com
- 91.220.42.211 ↩ eu-smtp-inbound-2.mimecast.com
- 195.130.217.241 ↩ eu-smtp-inbound-1.mimecast.com
SOA Record
Raw SOA
damian.ns.cloudflare.com dns.cloudflare.com 2398787277 10000 2400 604800 1800
Primary NS (mname)
damian.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398787277
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
damian.ns.cloudflare.com
keira.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:213.218.197.2 ip4:149.5.76.178 include:eu._netblocks.mimecast.com include:servers.mcsv.net -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; pct=100; sp=reject; fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 1 found
k1._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: k1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
5 records- atlassian-domain-verification=s03EJyujoViKMig9ao1xTyzsUmwMis1oLv9KZ6nSPQqLHX3kcUUgaaDzNGYCQHWf
- ca3-5cf544a71c6243c7bfecae6cc9ffe1a4
- je3l1jn4gs5m1trv2oscn2nnam
- k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC//RGTYFDm7IkGi3fCXW87OPq1Hiy/5Llcb4+vq5D33Qn1zvzPXNJOUglEyLhDP/uBWVUSIkz/IngcrjEgLYfNYIfv8tYyAvknqeTbMuF1ogoRKWMHEmqZ3bfxEGbPsBCztW20eiO0TGFczL6JYlfkr2OSGRASv9H5kG40eYbfZwIDAQAB
- SPFv=spf1 ip4:213.218.197.2 ip4:149.5.76.178 include:eu._netblocks.mimecast.com include:servers.mcsv.net -all
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