Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
customair.mx
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 03:32:48 UTC · ↺ Refresh
MX Hostnames
- customair-mx.mail.protection.outlook.com
MX Priorities
- customair-mx.mail.protection.outlook.com: 0
A / AAAA Records
- 74.208.236.146 ↩ 74-208-236-146.elastic-ssl.ui-r.com
- 2607:f1c0:100f:f000::2ad ↩ 2607-f1c0-100f-f000-0000-0000-0000-02ad.elastic-ssl.ui-r.com
Mail Server IPs
- 52.101.10.16 ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
- 52.101.11.19 ↩ mail-sa9pr04cu00203.inbound.protection.outlook.com
- 52.101.194.4 ↩ mail-ch4pr04cu00104.inbound.protection.outlook.com
- 52.101.40.0 ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 2a01:111:f403:f908::2 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
- 2a01:111:f403:c922:: ↩ mail-bl0pr03cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f802::3 ↩ mail-sj0pr03cu01403.inbound.protection.outlook.com
- 2a01:111:f403:f905::4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1045.ui-dns.com hostmaster.1und1.com 2017060154 28800 7200 604800 600
Primary NS (mname)
ns1045.ui-dns.com
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060154
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns1045.ui-dns.de
ns1045.ui-dns.org
ns1045.ui-dns.com
ns1045.ui-dns.biz
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:189.203.139.217 include:spf.protection.outlook.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; pct=25; adkim=r; aspf=r
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
⚠ Policy applies to 25% of failing messages only
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ 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- SPFv=spf1 ip4:189.203.139.217 include:spf.protection.outlook.com ~all
- google-site-verification=lowA1l0f2HKfr7B0hfanHbAjq81Vj0XLhguqGdGUYOs
- google-site-verification=lNhhZTjMjwfKdzaereUoqKeXzN6YVirKUkHvG7N2dzw
- zone-ownership-verification-e4928173bf8add2bf8fccf5779d68e90b28fa65dee4b83fe29c8f5f3a530a07c
Full email verification for customair.mx
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