Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
listers.co.uk
Yes
✓ Yes
Symantec
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-18 05:33:00 UTC · ↺ Refresh
MX Hostnames
- cluster8a.eu.messagelabs.com
- cluster8.eu.messagelabs.com
MX Priorities
- cluster8.eu.messagelabs.com: 10
- cluster8a.eu.messagelabs.com: 20
A / AAAA Records
- 20.117.84.200 (no PTR)
Mail Server IPs
- 195.245.230.191 ↩ mail856.messagelabs.com
- 195.245.231.71 ↩ mail875.messagelabs.com
- 85.158.142.216 ↩ mail840.messagelabs.com
- 195.245.230.195 ↩ mail853.messagelabs.com
- 85.158.142.211 ↩ mail835.messagelabs.com
- 195.245.231.66 ↩ mail871.messagelabs.com
- 34.91.159.228 ↩ 228.159.91.34.bc.googleusercontent.com
SOA Record
Raw SOA
ns1-02.azure-dns.com domains.listers.co.uk 2019091301 3600 300 2419200 300
Primary NS (mname)
ns1-02.azure-dns.com
Admin Email (rname)
domains@listers.co.uk
Serial
2019091301
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
ns4-02.azure-dns.info
ns1-02.azure-dns.com
ns2-02.azure-dns.net
ns3-02.azure-dns.org
SPF Record
✓ Strict (-all)
v=spf1 ip4:149.72.187.255 ip4:51.142.236.243 ip4:54.154.125.193 ip4:51.140.109.121 ip4:195.81.252.243 ip4:195.81.253.243 include:spf.messagelabs.com include:spf-uk.emailsignatures365.com include:spf.protection.outlook.com include:sendgrid.net include:servers.mcsv.net include:amazonses.com include:_netblocks.keyloop.io -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 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
16 records- 80rluedtk1dmunm80in1b32l2f
- access-domain-verification=5000a7f9a0bc579b19be75ef168c50cbf87a19086a9e363e6da0057b2996ef82
- google-site-verification=YkvVGUzJetnyahttxmV-G12FvDsqZjCZ3lme0Csb1i0
- d62lqp77v0tqsr07nv6a4n020t
- _d4s4230teezjrtsg58y7i36lbxq4xde
- twilio-domain-verification=324ca6a32020eb4828d21ec9674b32ad
- 75omt5cknln85nkramau5vvsno
- apple-domain-verification=C4gn0LNw46YNhow7qRFoP9X2Rqk5ME3yOENQAmw2PMo
- i63rloctmkocimtgfk9d088lqh
- _ze9vbc7jlmggmcenz2rn5ff7g1g66o0
- p7la44ertdi13lpr78pp4r1hl
- ligl9sscq3t8fn23hl8igrt1du
- SPFv=spf1 ip4:149.72.187.255 ip4:51.142.236.243 ip4:54.154.125.193 ip4:51.140.109.121 ip4:195.81.252.243 ip4:195.81.253.243 include:spf.messagelabs.com include:spf-uk.emailsignatures365.com include:spf.protection.outlook.com include:sendgrid.net include:servers.mcsv.net include:amazonses.com include:_netblocks.keyloop.io -all
- ldho70nv25c95dtngaaus7sg9e
- iqcjrdso4l7f2ucnqfvo7qnbbt
- google-site-verification=hIsGL5ND5i2dVNPuVSJgbQgSlEOut1G7Rnye2SN4q8k
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