Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ac-hotels.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 02:33:53 UTC · ↺ Refresh
MX Hostnames
- achotels-com0e.mail.protection.outlook.com
MX Priorities
- achotels-com0e.mail.protection.outlook.com: 10
A / AAAA Records
- 3.214.21.245 ↩ ec2-3-214-21-245.compute-1.amazonaws.com
Mail Server IPs
- 52.101.10.2 ↩ mail-bn8pr03cu00202.inbound.protection.outlook.com
- 52.101.10.18 ↩ mail-bn8pr05cu00302.inbound.protection.outlook.com
- 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
- 52.101.8.34 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-252.awsdns-31.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-252.awsdns-31.com
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-722.awsdns-26.net
ns-1115.awsdns-11.org
ns-2044.awsdns-63.co.uk
ns-252.awsdns-31.com
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:162.130.1.184 ip4:162.130.1.198 ip4:162.130.1.199 ip4:129.41.169.51 ip4:129.41.169.52 ip4:162.130.196.233 ip4:162.130.196.234 ip4:162.130.197.47 ip4:162.130.197.96/27 include:spf.marriott.com include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → 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
3 records- SPFv=spf1 mx ip4:162.130.1.184 ip4:162.130.1.198 ip4:162.130.1.199 ip4:129.41.169.51 ip4:129.41.169.52 ip4:162.130.196.233 ip4:162.130.196.234 ip4:162.130.197.47 ip4:162.130.197.96/27 include:spf.marriott.com include:spf.protection.outlook.com -all
- MS=DCC2E7AE2FA99D8BC8D9D191F635C6632AA60487
- MS=ms75667058
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