Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
atarc.org
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-03 19:04:34 UTC · ↺ Refresh
MX Hostnames
- alt2.aspmx.l.google.com
- alt1.aspmx.l.google.com
- alt4.aspmx.l.google.com
- alt3.aspmx.l.google.com
- smtp.google.com
MX Priorities
- alt3.aspmx.l.google.com: 10
- alt2.aspmx.l.google.com: 5
- alt1.aspmx.l.google.com: 5
- smtp.google.com: 1
- alt4.aspmx.l.google.com: 10
A / AAAA Records
- 155.138.207.243
- 2001:19f0:5401:2ec5:5400:4ff:fe6c:3216
Mail Server IPs
- 192.178.223.26 ↩ yulhrs-in-f26.1e100.net
- 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net
- 172.253.116.26 ↩ dj-in-f26.1e100.net
- 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
- 108.177.123.26 ↩ lcscld-in-f26.1e100.net
- 2800:3f0:4003:c0f::1a (no PTR)
- 64.233.180.26 ↩ on-in-f26.1e100.net
- 142.251.167.26 ↩ ww-in-f26.1e100.net
- 142.251.167.27 ↩ ww-in-f27.1e100.net
- 142.251.179.26 ↩ pd-in-f26.1e100.net
- 142.251.179.27
- 2607:f8b0:4004:c1f::1a
- 2607:f8b0:4004:c1f::1b
- 2607:f8b0:4004:c1d::1a
- 2607:f8b0:4004:c1d::1b
- 173.194.76.26
- 2a00:1450:400c:c00::1b
SOA Record
Raw SOA
ns1-36.azure-dns.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300
Primary NS (mname)
ns1-36.azure-dns.com
Admin Email (rname)
azuredns-hostmaster@microsoft.com
Serial
1
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
ns2-36.azure-dns.net
ns3-36.azure-dns.org
ns4-36.azure-dns.info
ns1-36.azure-dns.com
SPF Record
✓ Strict (-all)
v=spf1 include:aspmx.sailthru.com _spf.govexec.com a:web.server.atarc.org -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
google._domainkey
✓ Public key: 392 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
4 records- google-site-verification=C3HQ0OKg3AvSKlVWlfPYG-kVz0AHuLN5GvJ_J8dKGmM
- SPFv=spf1 include:aspmx.sailthru.com _spf.govexec.com a:web.server.atarc.org -all
- google-site-verification=1CAp51ore5LXpUyIKads7P_MYIV8u3B1CdNDBUgRvDE
- yahoo-verification-key=kHQkRLKtNgKBNahJhTe2HcCDU4m5zyACpdN/ZeQPiLU=
Full email verification for atarc.org
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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