Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
southsystem.com.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 17:48:52 UTC · ↺ Refresh
MX Hostnames
- southsystem-com-br.mail.protection.outlook.com
MX Priorities
- southsystem-com-br.mail.protection.outlook.com: 0
A / AAAA Records
- 54.207.58.168 ↩ ec2-54-207-58-168.sa-east-1.compute.amazonaws.com
- 2600:1f1e:6a:d500:ee7e:744a:d585:7d27 (no PTR)
Mail Server IPs
- 52.101.11.19 ↩ mail-sa9pr04cu00203.inbound.protection.outlook.com
- 52.101.41.21 ↩ mail-sj2pr05cu00305.inbound.protection.outlook.com
- 52.101.9.26 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
- 52.101.10.5 ↩ mail-bn6pr04cu00105.inbound.protection.outlook.com
- 2a01:111:f403:f902::2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
- 2a01:111:f403:c946:: ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c902:: ↩ mail-sj2pr05cu00300.inbound.protection.outlook.com
- 2a01:111:f403:c922::2 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-18.awsdns-02.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-18.awsdns-02.com
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1128.awsdns-13.org
ns-18.awsdns-02.com
ns-2040.awsdns-63.co.uk
ns-971.awsdns-57.net
SPF Record
✓ Strict (-all)
v=spf1 a mx include:spf.protection.outlook.com include:amazonses.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 13 found
google._domainkey
selector1._domainkey
selector2._domainkey
default._domainkey
mail._domainkey
dkim._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
zoho._domainkey
sendgrid._domainkey
mxvault._domainkey
amazonses._domainkey
✓ Public key: 216 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- SPFv=spf1 a mx include:spf.protection.outlook.com include:amazonses.com -all
- apple-domain-verification=IquX4BlorPTk968f
- atlassian-domain-verification=Yl6ehS+waLFO41gzvdBl/ViDkwe+s441qWG61sjxfFY+VbBFIGuKfoVTCfsXEcem
- atlassian-sending-domain-verification=e1ee6188-5784-49c2-8a9d-113dfd42f8f2
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