Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sicoob.com.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-29 00:02:05 UTC · ↺ Refresh
MX Hostnames
- sicoob-com-br.mail.protection.outlook.com
MX Priorities
- sicoob-com-br.mail.protection.outlook.com: 10
A / AAAA Records
- 177.53.251.34 ↩ sicoobpay.com.br
Mail Server IPs
- 52.101.41.26 ↩ mail-sj0pr03cu01702.inbound.protection.outlook.com
- 52.101.194.12 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
- 52.101.10.1 ↩ mail-bn6pr02cu00301.inbound.protection.outlook.com
- 52.101.40.6 ↩ mail-cy1pr03cu00106.inbound.protection.outlook.com
- 2a01:111:f403:c946:: ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c931:: ↩ mail-sn1pr02cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f90d:: ↩ mail-sn1pr0501cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c91d::b ↩ mail-mw2pr02cu00603.inbound.protection.outlook.com
SOA Record
Raw SOA
nameserver01.sicoob.com.br suporte.sicoob.com.br 2026032702 60 30 3600 0
Primary NS (mname)
nameserver01.sicoob.com.br
Admin Email (rname)
suporte@sicoob.com.br
Serial
2026032702
Refresh
60s
Retry
30s
Expire
3600s
Minimum TTL
0s
Nameservers (NS)
nameserver05.sicoob.com.br
nameserver06.sicoob.com.br
nameserver01.sicoob.com.br
nameserver02.sicoob.com.br
nameserver03.sicoob.com.br
nameserver04.sicoob.com.br
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:191.242.202.203 ip4:187.72.5.131 ip4:201.24.25.212 ip4:191.242.203.78 ip4:191.242.202.105 ip4:216.218.133.192/26 ip4:189.74.157.205/31 ip4:187.72.5.209 ip4:187.72.5.210 ip4:187.72.5.196 ip4:177.53.253.176/30 ip4:177.53.249.177 ip4:189.74.157.224/28 ip4:177.53.251.179 ip4:177.53.249.179 ip4:177.53.249.110 ip4:177.53.251.110 ip4:177.53.253.110 include:spf.protection.outlook.com include:cust-spf.exacttarget.com include:email-messaging.com include:_spf.elasticemail.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
15 records- JV1UMHYN6WXMOFQD44226KKLWHGIKOWXE0S6LJN9
- 6s3XyDQICQKLd3vtChu9BSEXti9pry5LcrEvrfiG/jpwWAUNqhL6+znyofmZXKJaqrqb0E6LtvloivebREXnRg==
- cloudflare_dashboard_sso=86bf4b4494998bc1439bd990e92cbf8f
- sophos-domain-verification=316373c8524a14a50c06f4d48a9332e6e22d2882ee23b0aa1a753e95db32ed56
- apple-domain-verification=heio56kpp4GMRkYZ
- ms-domain-verification=87ad4315-9315-41c5-86e2-82abfe0b6055
- knowbe4-site-verification=9349897150601012306677e2407b9dec
- google-site-verification=T3a4aWHruWgaq-tS_J-HMkzLM3nytPMiypBbRx9ruA0
- atlassian-domain-verification=qY4UaYIxKFc5yWXa1MjnblNcEwM6CnZMqjN/uNi0MGVlbfbKQSWRKq3cp12jgjj5
- SPFv=spf1 mx ip4:191.242.202.203 ip4:187.72.5.131 ip4:201.24.25.212 ip4:191.242.203.78 ip4:191.242.202.105 ip4:216.218.133.192/26 ip4:189.74.157.205/31 ip4:187.72.5.209 ip4:187.72.5.210 ip4:187.72.5.196 ip4:177.53.253.176/30 ip4:177.53.249.177 ip4:189.74.157.224/28 ip4:177.53.251.179 ip4:177.53.249.179 ip4:177.53.249.110 ip4:177.53.251.110 ip4:177.53.253.110 include:spf.protection.outlook.com include:cust-spf.exacttarget.com include:email-messaging.com include:_spf.elasticemail.com -all
- Dynatrace-site-verification=cff0b246-330d-4d57-9124-4f658faf5f60__hlgkt01j8vm5u3kqr3h1tvkr86
- mn+m+q6qpOeaEz4CsrC+50elokYASlyu2EAQrDmlgeKiLpPB4zP10NHpPw5r+qPmBv3bKbwxxCSe6sXbK2SrCQ==
- samsung-domain-verification=20750886-6383-4281-9b46-972236023295
- KVukGvAu/j2FEFvkLV6O2bhk3598YEWJljun291TDcwR6OsnIHxaC3vnhx4ZL5S15ptSdd+yGMmtX42UEU7osw==
- google-gws-recovery-domain-verification=65335563
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for sicoob.com.br
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits