Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
certasenergy.co.uk
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-19 21:13:05 UTC · ↺ Refresh
MX Hostnames
- certasenergy-co-uk.mail.protection.outlook.com
MX Priorities
- certasenergy-co-uk.mail.protection.outlook.com: 10
A / AAAA Records
- 104.26.4.140 (no PTR)
- 172.67.71.147 (no PTR)
- 104.26.5.140
- 2606:4700:20::ac43:4793
- 2606:4700:20::681a:48c
- 2606:4700:20::681a:58c
Mail Server IPs
- 52.101.73.16 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 52.101.68.32 ↩ mail-db3pr0202cu00200.inbound.protection.outlook.com
- 52.101.73.4 ↩ mail-am0pr83cu00404.inbound.protection.outlook.com
- 52.101.73.12 ↩ mail-am4pr0401cu00104.inbound.protection.outlook.com
- 2a01:111:f403:ca09::20 ↩ mail-as8pr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:ca04::a ↩ mail-du0pr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca04::d ↩ mail-db6pr03cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca04::f ↩ mail-db7pr03cu00507.inbound.protection.outlook.com
SOA Record
Raw SOA
galilea.ns.cloudflare.com dns.cloudflare.com 2399038382 10000 2400 604800 1800
Primary NS (mname)
galilea.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399038382
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
galilea.ns.cloudflare.com
valentin.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:54.154.155.148 ip4:213.120.214.166 include:_spf.otmltd.com include:amazonses.com include:spf.protection.outlook.com include:sendgrid.net include:Spf.uk.exclaimer.net include:spfa.cpmails.com -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=reject; rua=mailto:[email protected],mailto:[email protected]
✓ 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
✓ 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
14 records- teamviewer-sso-verification=f9f49790973547a987fd7fb145cedacd
- SPFv=spf1 mx ip4:54.154.155.148 ip4:213.120.214.166 include:_spf.otmltd.com include:amazonses.com include:spf.protection.outlook.com include:sendgrid.net include:Spf.uk.exclaimer.net include:spfa.cpmails.com -all
- 1370F8139BDA5896D8CDDCDE9E1CBEA4DB99073A41F4B41082B1051C9B91E031
- MS=ms43865362
- apple-domain-verification=AScT4CJysjpr2DYa
- beanstalkSPF.smtp.com
- da42104a4964f3afd27b200200264c66
- docusign=4b6bc6a7-4387-4a3f-af42-fb4e9b04f9c6
- google-site-verification=Eknri_7Qycknu5nW8wL1og5zDWU5eucUkDGtUqa2Ouo
- google-site-verification=MtMPGvFa5Jq7nbKJqdjdBPPQq0IIyimRcBVN9kxrhmE
- google-site-verification=bSC932NV_CVKpHBh3xtc8MURKZvvxbrH3Yzd_DILw5k
- mandrill_verify.89bautWqpEQLYdb5MoDhFg
- msfpkey=2ic4c3xaop354h6zobrki29mg
- msfpkey=vyh9eekco2hzaulx80vgci6l
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