Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sertifi.net
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-02 12:19:49 UTC · ↺ Refresh
MX Hostnames
- sertifi-net.mail.protection.outlook.com
MX Priorities
- sertifi-net.mail.protection.outlook.com: 5
A / AAAA Records
- 104.18.31.227 (no PTR)
- 104.18.30.227 (no PTR)
Mail Server IPs
- 52.101.10.2 ↩ mail-bn8pr03cu00202.inbound.protection.outlook.com
- 52.101.41.58 ↩ mail-sj0pr02cu00102.inbound.protection.outlook.com
- 52.101.194.17 ↩ mail-ch5pr02cu00401.inbound.protection.outlook.com
- 52.101.40.0 ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 2a01:111:f403:f913::1 ↩ mail-cy5pr05cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c801::1 ↩ mail-sn1pr0501cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f908:: ↩ mail-bn1pr21cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f912:: ↩ mail-cy5pr03cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
hazel.ns.cloudflare.com dns.cloudflare.com 2400427841 10000 2400 604800 1800
Primary NS (mname)
hazel.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400427841
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
kurt.ns.cloudflare.com
hazel.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:204.93.207.42 ip4:107.21.57.45 ip4:204.93.207.38 ip4:107.23.69.160 ip4:204.93.207.36 ip4:104.245.209.204 ip4:149.72.191.76 ip4:149.72.171.184 -all
📊 DNS lookups: 0/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=reject; rua=mailto:[email protected]; aspf=r; pct=100
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 13 found
google._domainkey
selector1._domainkey
selector2._domainkey
default._domainkey
mail._domainkey
dkim._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
zoho._domainkey
sendgrid._domainkey
mxvault._domainkey
amazonses._domainkey
⚠ Public key (p=) missing in DKIM record for selector google.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
8 records- yahoo-verification-key=SVHWfs4qcAUJDw62jSLdlv4bdCPg/0hxbfYzrXfdpXA=
- MS=ms33724387
- _globalsign-domain-verification=NAOgvNpWijdAIL_RZ2Kuv5EjcdFILr4P7PQFagNPgE
- atlassian-domain-verification=0D-zUse4NcZPrwF0zc5oFHN7MyIvCHMeRiN9JqGafn1fGLXTT+R1jzoe6doAlHKO
- google-site-verification=8u_yFMQ1bldBQaADPizNhv4PmXNlRaqB2z3wgDXj4vM
- google-site-verification=oMcKVUZ1jJ8jLUmd-26L-NYHa7m_OiiUHWv6Qgv3pBY
- SPFv=spf1 ip4:204.93.207.42 ip4:107.21.57.45 ip4:204.93.207.38 ip4:107.23.69.160 ip4:204.93.207.36 ip4:104.245.209.204 ip4:149.72.191.76 ip4:149.72.171.184 -all
- v=verifydomain MS=2226856
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