Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
optixsolutions.co.uk
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-22 22:18:44 UTC · ↺ Refresh
MX Hostnames
- optixsolutions-co-uk.mail.protection.outlook.com
MX Priorities
- optixsolutions-co-uk.mail.protection.outlook.com: 0
A / AAAA Records
- 178.79.148.187 ↩ 178-79-148-187.ip.linodeusercontent.com
Mail Server IPs
- 52.101.68.16 ↩ mail-db4pr02cu00400.inbound.protection.outlook.com
- 52.101.68.27 ↩ mail-db7pr03cu00503.inbound.protection.outlook.com
- 52.101.68.25 ↩ mail-db8pr02cu00101.inbound.protection.outlook.com
- 52.101.73.153 ↩ mail-as8pr05cu00401.inbound.protection.outlook.com
- 2a01:111:f403:ca09::5 ↩ mail-am1pr04cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca09::c ↩ mail-as8pr05cu00304.inbound.protection.outlook.com
- 2a01:111:f403:ca09:: ↩ mail-am3pr04cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca04::d ↩ mail-db6pr03cu00105.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1-37.azure-dns.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300
Primary NS (mname)
ns1-37.azure-dns.com
Admin Email (rname)
azuredns-hostmaster@microsoft.com
Serial
1
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
ns4-37.azure-dns.info
ns1-37.azure-dns.com
ns2-37.azure-dns.net
ns3-37.azure-dns.org
SPF Record
✓ Strict (-all)
v=spf1 ip4:195.74.114.30 include:_spf.createsend.com include:spf.protection.outlook.com include:spf.mandrillapp.com include:sendgrid.net include:_spf.accelo.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 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
4 records- 5sdxkgxjmq6qtmqvpq2lm09ztq3xv50h
- 7r5j7l35qsjt8d6rtpx9m54wp91w2fzs
- SPFv=spf1 ip4:195.74.114.30 include:_spf.createsend.com include:spf.protection.outlook.com include:spf.mandrillapp.com include:sendgrid.net include:_spf.accelo.com -all
- brevo-code:4b501b57b6968900492461a29c4a66f9
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