asteco.com

Valid Email Server

Domain Overview

DNS: โœ“ 2mo ago Checker: โœ“ 2mo ago
asteco.com
Yes
โœ“ Yes
Outlook
No
No
โš  Yes
No
No
Did you mean: [email protected]

Checked via [email protected] ยท 2026-04-02 13:52:04 UTC ยท โ†บ Refresh

MX Hostnames

  • asteco-com.mail.protection.outlook.com

MX Priorities

  • asteco-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 23.199.67.115 โ†ฉ a23-199-67-115.deploy.static.akamaitechnologies.com

Mail Server IPs

  • 52.101.148.1 โ†ฉ mail-dx1p273cu00301.inbound.protection.outlook.com
  • 52.101.148.3 โ†ฉ mail-dx3p273cu00103.inbound.protection.outlook.com
  • 52.101.147.1 โ†ฉ mail-au1p273cu00101.inbound.protection.outlook.com
  • 52.101.148.13 โ†ฉ mail-dx2p273cu00205.inbound.protection.outlook.com
  • 2a01:111:f403:cc30::1 โ†ฉ mail-dx3p273cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:cc2f:: โ†ฉ mail-au1p273cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:cc30:: โ†ฉ mail-dx1p273cu00300.inbound.protection.outlook.com
  • 2a01:111:f403:cc30::3 โ†ฉ mail-dx2p273cu00203.inbound.protection.outlook.com

SOA Record

Raw SOA ns39.domaincontrol.com dns.jomax.net 2026032508 28800 7200 604800 600
Primary NS (mname)
ns39.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026032508
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns39.domaincontrol.com
ns40.domaincontrol.com

SPF Record

โœ“ Strict (-all)
v=spf1 ip4:213.42.218.94 ip4:194.170.7.107 include:spf.protection.outlook.com include:spf.messagelabs.com include:spf.scanscope.net include:spf-uae.emailsignatures365.com include:spf.sendinblue.com include:asp-spf2.yardi.com include:_spf.salesforce.com include:_spf.qualtrics.com ip4:94.56.155.139 ip4:161.71.64.252 -all
๐Ÿ“Š DNS lookups: 8/10
โœ“ Hard fail (-all) โ€” strict enforcement

DMARC Record

โœ“ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; pct=100; fo=1;
โœ“ Reject โ€” strongest protection
๐Ÿ“‹ SPF alignment: Relaxed ยท DKIM alignment: Relaxed
๐Ÿ“ง Reports โ†’ mailto:[email protected]

DKIM Selectors

โœ“ 5 found
selector1._domainkey
selector2._domainkey
mail._domainkey
s1._domainkey
s2._domainkey
โœ“ Public key: 392 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

3 records
  • brevo-code:b199f25d8759e2ffa17d965553fabe83
  • SPFv=spf1 ip4:213.42.218.94 ip4:194.170.7.107 include:spf.protection.outlook.com include:spf.messagelabs.com include:spf.scanscope.net include:spf-uae.emailsignatures365.com include:spf.sendinblue.com include:asp-spf2.yardi.com include:_spf.salesforce.com include:_spf.qualtrics.com ip4:94.56.155.139 ip4:161.71.64.252 -all
  • DKIMv=DKIM1; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsWlZU5wrYbu+oh19Tz88yhYcxiZuXULGuiEFEBN/0x/VXKtZqB/lAY+7Uk7Nl9QOikazZUjBFxKb8NEx1tHcDuTGuC4QVxp1EmqU/l6adf6+jBbsuC2zoppiGQM2nUOYO/sz8zrrUciLYda2hKYxQS4jdwXLYgDGeF+47LUVTFrfEaWjuzVuuKZsWbN4p8zpEKVen244YErvASvhSmj6ytPKyGPMj0vtpbcMLpuwOidHVPv7la8f+DbZRZuzO2dzKEe6M99CpdZvuH9QJsmfxTkQt422bftERqrE26BYycIelQM/pHpox32LkAQF2qLJlEAiKy2rKu+eweREeoZvDQIDAQAB
Full email verification for asteco.com

Run SMTP check, SPF/DKIM/DMARC and catch-all detection.

SPF / DKIM / DMARC Get 1,000 Free Credits