Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
atcllc.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-22 23:45:31 UTC · ↺ Refresh
MX Hostnames
- atcllc-com.mail.protection.outlook.com
MX Priorities
- atcllc-com.mail.protection.outlook.com: 10
A / AAAA Records
- 65.52.218.253 (no PTR)
Mail Server IPs
- 52.101.42.16 ↩ mail-co1pr05cu00300.inbound.protection.outlook.com
- 52.101.11.15 ↩ mail-sa9pr02cu00207.inbound.protection.outlook.com
- 52.101.10.5 ↩ mail-bn6pr04cu00105.inbound.protection.outlook.com
- 52.101.50.1 ↩ mail-co1pr05cu00401.inbound.protection.outlook.com
- 2a01:111:f403:c902::3 ↩ mail-sj0pr03cu01703.inbound.protection.outlook.com
- 2a01:111:f403:f90b:: ↩ mail-bn6pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f90d:: ↩ mail-sn1pr0501cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c922::2 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
SOA Record
Raw SOA
cbru.br.ns.els-gms.att.net rm-hostmaster.ems.att.com 213 43200 7200 604800 86400
Primary NS (mname)
cbru.br.ns.els-gms.att.net
Admin Email (rname)
rm-hostmaster@ems.att.com
Serial
213
Refresh
43200s
Retry
7200s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
cmtu.mt.ns.els-gms.att.net
cbru.br.ns.els-gms.att.net
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spfext.zapproved.com ip4:12.180.166.107 ip4:12.37.13.107 ip4:12.37.13.98 ip4:12.180.166.98 -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; pct=100; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ 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- 5VGw7WNuqWqXtcsOUoFo0E4PBLiH+aie9VV1uLZd4cF5Vlpfof1GzHqwqHNhkfze6toMCDDawzdzwYf1V6x6fg==
- apple-domain-verification=0M1dZKVtXz7sbkFt
- onx=566cd11e-702a-402a-867c-c6f88eaa7455
- SPFv=spf1 include:spf.protection.outlook.com include:spfext.zapproved.com ip4:12.180.166.107 ip4:12.37.13.107 ip4:12.37.13.98 ip4:12.180.166.98 -all
- l2uu1jupefbkf7o9823qucjaif
- hl9fi6c1bcaucvq1t019vqas1m
- ullabahajjnl8qj58jf7ltk73i
- atcllc.azurewebsites.net
- t2qi7vp6cllild0vo8aki4ts6
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