Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
corona.com.co
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-24 08:27:46 UTC · ↺ Refresh
MX Hostnames
- corona-com-co.mail.protection.outlook.com
MX Priorities
- corona-com-co.mail.protection.outlook.com: 0
A / AAAA Records
- 13.90.152.140 (no PTR)
Mail Server IPs
- 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
- 52.101.40.0 ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 52.101.9.14 ↩ mail-bl0pr03cu00206.inbound.protection.outlook.com
- 52.101.10.12 ↩ mail-bn1pr21cu00204.inbound.protection.outlook.com
- 2a01:111:f403:c902::16 ↩ mail-byapr04cu00306.inbound.protection.outlook.com
- 2a01:111:f403:f802::3 ↩ mail-sj0pr03cu01403.inbound.protection.outlook.com
- 2a01:111:f403:c901::1 ↩ mail-bl2pr04cu00201.inbound.protection.outlook.com
- 2a01:111:f403:c902::14 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-cloud-b1.googledomains.com cloud-dns-hostmaster.google.com 1 21600 3600 259200 300
Primary NS (mname)
ns-cloud-b1.googledomains.com
Admin Email (rname)
cloud-dns-hostmaster@google.com
Serial
1
Refresh
21600s
Retry
3600s
Expire
259200s
Minimum TTL
300s
Nameservers (NS)
ns-cloud-b1.googledomains.com
ns-cloud-b4.googledomains.com
ns-cloud-b3.googledomains.com
ns-cloud-b2.googledomains.com
SPF Record
✓ Strict (-all)
v=spf1 a:ns01.corona.com.co a:ns02.corona.com.co include:spf.protection.outlook.com include:spf.masterbase.com include:_spf.embluemail.com include:spf.mandrillapp.com include:_spf.aldeamo.com -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=0:1:d:s; adkim=s; aspf=s
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
12 records- ciscocidomainverification=765c168393e618ca058950aaf1e7f8f4bcc6e74d2276b00fcd23890d045cec33
- MS=ms29584463
- SPFv=spf1 a:ns01.corona.com.co a:ns02.corona.com.co include:spf.protection.outlook.com include:spf.masterbase.com include:_spf.embluemail.com include:spf.mandrillapp.com include:_spf.aldeamo.com -all
- Dynatrace-site-verification=b666490d-3546-4b9f-9e6a-4656ab6d8d30__imn806dkut8ajpi9r0dijrf9m9
- p3ldkrd9lc3wbc00sc4hwnmd6q8ltm2h
- avjZSHlOO1396M/YZNmTq8/kK9RPM4HhVT4r4pvJoMNLTqkfpteMnhF6dUgm/AQQblDlSYytiFQMjTOGafqW8w==
- google-gws-recovery-domain-verification=54114041
- google-site-verification=f1m0JVc19QfMRgNPF32dLyAePP22FJSu3ThdEn6mPIg
- apple-domain-verification=AeCnKhqOLQ9jRfyp
- MS=ms30668414
- MS=ms69345532
- _gen1caks78fjz0xs4x8trpg9o8bv0l1
Full email verification for corona.com.co
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits