Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
guide.com.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-02 11:12:51 UTC · ↺ Refresh
MX Hostnames
- guide-com-br.mail.protection.outlook.com
MX Priorities
- guide-com-br.mail.protection.outlook.com: 5
A / AAAA Records
- 3.5.234.243 (no PTR)
- 3.5.233.35 (no PTR)
- 3.5.234.255
- 3.5.233.10
- 3.5.234.162
- 3.5.234.191
- 3.5.234.253
- 16.12.2.59
Mail Server IPs
- 52.101.198.0 ↩ mail-cp5p284cu01800.inbound.protection.outlook.com
- 52.101.198.1 ↩ mail-cp4p284cu00401.inbound.protection.outlook.com
- 52.101.200.0 ↩ mail-roap284cu02600.inbound.protection.outlook.com
- 52.101.198.38 ↩ mail-cp3p284cu00706.inbound.protection.outlook.com
- 2a01:111:f403:c94a::2 ↩ mail-cp3p284cu00702.inbound.protection.outlook.com
- 2a01:111:f403:c94a::1 ↩ mail-cp4p284cu00401.inbound.protection.outlook.com
- 2a01:111:f403:c94c:: ↩ mail-roap284cu02600.inbound.protection.outlook.com
- 2a01:111:f403:c94a:: ↩ mail-cp5p284cu01800.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-158.awsdns-19.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-158.awsdns-19.com
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-158.awsdns-19.com
ns-1985.awsdns-56.co.uk
ns-736.awsdns-28.net
ns-1136.awsdns-14.org
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:sendgrid.net ip4:200.219.244.209 -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;pct=80;rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
⚠ Policy applies to 80% of failing messages only
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
7 records- MS=ms75802597
- _7swzvebkb9e5q7b38czd4h071gwzuim
- _x9ng9bkn02i341xozz8jzh3rsgaqhl2
- google-site-verification=0e6slJqMQkfcDL53Aj_ySsvxVpP-xEyp7So3QbDPp7s
- google-site-verification=gWHahBRGja_afNdjwgPWkdK3qkWN8x8C_ijEz1HfO6k
- SPFv=spf1 include:spf.protection.outlook.com include:sendgrid.net ip4:200.219.244.209 -all
- yTyrLl80UgMHrlgoeP6S++R8yZ1qIfJ2dsDkMyYefuzv1PXMDYbsHlvMYZ9UkNb/aV5DdpLZhvm1UdWMgEuR0Q==
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