erg.com

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
erg.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-18 04:59:19 UTC · ↺ Refresh

MX Hostnames

  • erg-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 54.83.12.95 ↩ ec2-54-83-12-95.compute-1.amazonaws.com

Mail Server IPs

  • 52.101.194.17 ↩ mail-ch5pr02cu00401.inbound.protection.outlook.com
  • 52.101.42.16 ↩ mail-co1pr05cu00300.inbound.protection.outlook.com
  • 52.101.9.20 ↩ mail-bl0pr02cu00604.inbound.protection.outlook.com
  • 40.93.192.1 ↩ mail-dm5pr02cu00201.inbound.protection.outlook.com
  • 2a01:111:f403:f909:: ↩ mail-bn6pr04cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:c922::2 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
  • 2a01:111:f403:f90b:: ↩ mail-bn6pr04cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:f90d:: ↩ mail-sn1pr0501cu00200.inbound.protection.outlook.com

SOA Record

Raw SOA dnsauth1.sys.gtei.net dns.level3.net 2026031209 3600 900 864000 3600
Primary NS (mname)
dnsauth1.sys.gtei.net
Admin Email (rname)
dns@level3.net
Serial
2026031209
Refresh
3600s
Retry
900s
Expire
864000s
Minimum TTL
3600s

Nameservers (NS)

dnsauth2.sys.gtei.net
dnsauth3.sys.gtei.net
dnsauth1.sys.gtei.net

SPF Record

✓ Strict (-all)
v=spf1 ip4:4.17.135.10 ip4:4.36.57.68 ip4:4.36.57.49 ip4:4.36.57.17 ip4:4.36.57.32 ip4:4.34.225.226 ip4:8.53.109.131 ip4:4.34.226.2 ip4:4.34.225.194 ip4:4.34.202.130 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine;sp=quarantine; fo=1; ri=3600; rua=mailto:[email protected],mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
↳ Subdomain policy: quarantine

DKIM Selectors

✓ 3 found
selector1._domainkey
selector2._domainkey
default._domainkey
✓ Public key: 216 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

4 records
  • DKIMv=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCXaJkenEnturrh2Y9mgJkKKp48pBk35AeU12Hg/DAx7wmlQACNDJnjrcgnHLRVKJtsGGR3WdkhT0erS59TqrpaR/Hz/6sJkoGuI1HA7Z3drdX1GUvEHEPXeA/P4a34VEN8k1TZujLiOSoSt1kzfd/cj9qVW0LfTHziXF5QtwDi9QIDAQAB
  • apple-domain-verification=moynss3OYVBr0zpj
  • MS=ms91004464
  • SPFv=spf1 ip4:4.17.135.10 ip4:4.36.57.68 ip4:4.36.57.49 ip4:4.36.57.17 ip4:4.36.57.32 ip4:4.34.225.226 ip4:8.53.109.131 ip4:4.34.226.2 ip4:4.34.225.194 ip4:4.34.202.130 include:spf.protection.outlook.com -all
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