a-core.com

Valid Email Server

Domain Overview

DNS: โœ“ 2mo ago Checker: โœ“ 2mo ago
a-core.com
Yes
โœ“ Yes
Unknown
No
No
โš  Yes
No
No
Did you mean: [email protected]

Checked via [email protected] ยท 2026-03-18 13:48:14 UTC ยท โ†บ Refresh

MX Hostnames

  • us1-smtp-mx1.titanhq.com
  • us1-smtp-mx2.titanhq.com

MX Priorities

  • us1-smtp-mx1.titanhq.com: 10
  • us1-smtp-mx2.titanhq.com: 20

A / AAAA Records

  • 185.230.63.107 โ†ฉ unalocated.63.wixsite.com

Mail Server IPs

  • 18.225.12.231 โ†ฉ us1-smtp-mx1.titanhq.com
  • 18.116.252.179 โ†ฉ us1-smtp-mx1.titanhq.com
  • 18.218.73.72 โ†ฉ us1-smtp-mx1.titanhq.com

SOA Record

Raw SOA arnold.ns.cloudflare.com dns.cloudflare.com 2397914599 10000 2400 604800 1800
Primary NS (mname)
arnold.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2397914599
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

arnold.ns.cloudflare.com
ingrid.ns.cloudflare.com

SPF Record

โœ“ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:scanscope.net -all
๐Ÿ“Š DNS lookups: 2/10
โœ“ Hard fail (-all) โ€” strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; ruf=mailto:[email protected]; aspf=s
~ Quarantine โ€” good protection (failing mail goes to spam)
๐Ÿ“‹ SPF alignment: Strict ยท DKIM alignment: Relaxed
โš  No aggregate reports (rua= not set)

DKIM Selectors

โœ“ 2 found
selector1._domainkey
selector2._domainkey
โœ“ Public key: 216 chars (valid)
โœ“ DKIM properly configured for selector: selector1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

9 records
  • afuqhcgqfhg063o2uqqin0ijc1
  • apple-domain-verification=HxrBKkPqin8CP5ed
  • bjeed0p2bpmvc5ht9t34k5mdlr
  • ip4:64.77.251.50 include:spf.protection.outlook.com -all
  • l9oi1oessc6f9kcsv67phc6m1t
  • DKIMv=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCrLHiExVd55zd/IQ/J/mRwSRMAocV/hMB3jXwaHH36d9NaVynQFYV8NaWi69c1veUtRzGt7yAioXqLj7Z4TeEUoOLgrKsn8YnckGs9i3B3tVFB+Ch/4mPhXWiNfNdynHWBcPcbJ8kjEQ2U8y78dHZj1YeRXXVvWob2OaKynO8/lQIDAQAB;
  • SPFv=spf1 include:spf.protection.outlook.com include:scanscope.net -all
  • MS=D532547B347F0B0372BBABAF84BB1EBCC915FC44
  • MS=ms95766173
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