Domain Overview
DNS: ✓ 20d ago
Checker: ✓ 20d ago
becerraconstruction.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-20 23:05:24 UTC · ↺ Refresh
MX Hostnames
- becerraconstruction-com.mail.protection.outlook.com
MX Priorities
- becerraconstruction-com.mail.protection.outlook.com: 0
A / AAAA Records
- 66.29.147.94 ↩ mail.guru-is.net
Mail Server IPs
- 52.101.10.18 ↩ mail-bn8pr05cu00302.inbound.protection.outlook.com
- 52.101.9.20 ↩ mail-bl0pr02cu00604.inbound.protection.outlook.com
- 52.101.9.0 ↩ mail-bl2pr02cu00100.inbound.protection.outlook.com
- 52.101.40.24 ↩ mail-cy5pr05cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f804::1 ↩ mail-co1pr05cu00301.inbound.protection.outlook.com
- 2a01:111:f403:f908::1 ↩ mail-bn1pr04cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c902::4 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
- 2a01:111:f403:c936:: ↩ mail-cy1pr05cu00400.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.guru-is.net info.guruinternetservices.com 2026050816 3600 1800 1209600 86400
Primary NS (mname)
ns1.guru-is.net
Admin Email (rname)
info@guruinternetservices.com
Serial
2026050816
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns1.guru-is.net
ns2.guru-is.net
ns3.guru-is.net
SPF Record
✓ Strict (-all)
v=spf1 ip4:104.209.35.28 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ 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
✓ 3 found
selector1._domainkey
selector2._domainkey
default._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
2 records- google-site-verification=K_qQZ409cgiQmegpXz8q2-qq0uWXN2XBvFDVSfVcOVE
- SPFv=spf1 ip4:104.209.35.28 include:spf.protection.outlook.com -all
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 · Customize →
See demo & docs
Deep verification
Full email verification for becerraconstruction.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits