Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
prereo.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-04 07:15:55 UTC · ↺ Refresh
MX Hostnames
- prereo-com.mail.protection.outlook.com
MX Priorities
- prereo-com.mail.protection.outlook.com: 0
A / AAAA Records
- 3.143.25.233 ↩ ec2-3-143-25-233.us-east-2.compute.amazonaws.com
Mail Server IPs
- 52.101.9.0 ↩ mail-bl2pr02cu00100.inbound.protection.outlook.com
- 52.101.41.22 ↩ mail-sj2pr05cu00406.inbound.protection.outlook.com
- 52.101.41.4 ↩ mail-sj2pr05cu00204.inbound.protection.outlook.com
- 52.101.8.46 ↩ mail-dm6pr05cu00406.inbound.protection.outlook.com
- 2a01:111:f403:f902::1 ↩ mail-bl2pr02cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c92c::1 ↩ mail-dm6pr03cu00401.inbound.protection.outlook.com
- 2a01:111:f403:c903::3 ↩ mail-mw2pr02cu00503.inbound.protection.outlook.com
- 2a01:111:f403:c946::5 ↩ mail-ch4pr21cu00105.inbound.protection.outlook.com
SOA Record
Raw SOA
kayden.ns.cloudflare.com dns.cloudflare.com 2399027429 10000 2400 604800 1800
Primary NS (mname)
kayden.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399027429
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
kayden.ns.cloudflare.com
rose.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:spf-us.emailsignatures365.com include:mail.zendesk.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 5 found
google._domainkey
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
10 records- SPFv=spf1 include:spf.protection.outlook.com include:spf-us.emailsignatures365.com include:mail.zendesk.com ~all
- 50E4VEPMCFO4ZZN29MQ6JXVE6VHT92GBW0GRVDRL
- 5a8b53a26b21209eab2986f0e5650eb3b3ea1ed6
- MS=ms43413149
- MS=ms78438322
- google-site-verification=Syhjq3xZEQduIFbpwaEY-mxTDwtxq83t9KlrrpJ7yF0
- google-site-verification=mRpHoPCAT9UpRCcEikYoxpgSMhAZgzMMgA69cG-Cqng
- kcthjd1irg8ijoieadiobksm0o
- pardot1024681=aa6c283a437f21fd99704f537fd251578861f91ad09b03756cf31c764004cb6a
- sending_domain1024681=89692078e342b02d9cf0ce088f93cb6d8e92c8b283ad3c2672b1eaa3cbd55a94
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