Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
iq.ufrj.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-04 13:10:30 UTC · ↺ Refresh
MX Hostnames
- iq-ufrj-br.mail.protection.outlook.com
MX Priorities
- iq-ufrj-br.mail.protection.outlook.com: 0
A / AAAA Records
- 146.164.29.27 (no PTR)
Mail Server IPs
- 52.101.10.12 ↩ mail-bn1pr21cu00204.inbound.protection.outlook.com
- 52.101.9.20 ↩ mail-bl0pr02cu00604.inbound.protection.outlook.com
- 52.101.41.0 ↩ mail-byapr05cu00400.inbound.protection.outlook.com
- 52.101.11.19 ↩ mail-sa9pr04cu00203.inbound.protection.outlook.com
- 2a01:111:f403:f913:: ↩ mail-cy1pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c946::2 ↩ mail-ch4pr04cu00102.inbound.protection.outlook.com
- 2a01:111:f403:c902::16 ↩ mail-byapr04cu00306.inbound.protection.outlook.com
- 2a01:111:f403:f805::1 ↩ mail-co1pr03cu00301.inbound.protection.outlook.com
SOA Record
Raw SOA
ns.iq.ufrj.br ferrao.iq.ufrj.br 2026010901 259200 7200 2419200 86400
Primary NS (mname)
ns.iq.ufrj.br
Admin Email (rname)
ferrao@iq.ufrj.br
Serial
2026010901
Refresh
259200s
Retry
7200s
Expire
2419200s
Minimum TTL
86400s
Nameservers (NS)
ns1.iq.ufrj.br
ns1.nce.ufrj.br
ns2.iq.ufrj.br
ns2.nce.ufrj.br
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com a:cerulean.iq.ufrj.br -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 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
4 records- MS=ms30834607
- I95SpUxbelHeYHhjkY1zGqH8nAXKpiLOULkuLAX7J4I0+xt/WEgulE+AF3BElBHDizA1wstp70eLC9LsTVLweQ==
- google-site-verification=dmqRBUSawWFVUB-A9KmaTE23RlvYfyfd91FKn4X6fTE
- SPFv=spf1 include:spf.protection.outlook.com a:cerulean.iq.ufrj.br -all
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