Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
coyolzf.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 06:10:14 UTC · ↺ Refresh
MX Hostnames
- mx-02-us-west-2.prod.hydra.sophos.com
- mx-01-us-west-2.prod.hydra.sophos.com
- coyolzf-com.mail.protection.outlook.com
MX Priorities
- mx-01-us-west-2.prod.hydra.sophos.com: 10
- mx-02-us-west-2.prod.hydra.sophos.com: 20
- coyolzf-com.mail.protection.outlook.com: 30
A / AAAA Records
- 155.254.21.224
Mail Server IPs
- 50.112.72.129 ↩ ec2-50-112-72-129.us-west-2.compute.amazonaws.com
- 44.234.222.180 ↩ ec2-44-234-222-180.us-west-2.compute.amazonaws.com
- 34.215.37.215 ↩ ec2-34-215-37-215.us-west-2.compute.amazonaws.com
- 52.101.8.42 ↩ mail-dm6pr03cu00402.inbound.protection.outlook.com
- 52.101.9.14 ↩ mail-bl0pr03cu00206.inbound.protection.outlook.com
- 52.101.9.11 ↩ mail-bl2pr04cu00103.inbound.protection.outlook.com
- 52.101.50.1 ↩ mail-co1pr05cu00401.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:f913::1 ↩ mail-cy5pr05cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f902::2
SOA Record
Raw SOA
ns1.nethostcr.com servers.host4yourself.com 2026012301 3600 7200 1209600 86400
Primary NS (mname)
ns1.nethostcr.com
Admin Email (rname)
servers@host4yourself.com
Serial
2026012301
Refresh
3600s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns2.nethostcr.com
ns1.nethostcr.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:155.254.21.224 ip4:198.37.103.143 include:spf.protection.outlook.com +include:relay.mailchannels.net include:emsd1.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- MS=ms15357399
- SPFv=spf1 ip4:155.254.21.224 ip4:198.37.103.143 include:spf.protection.outlook.com +include:relay.mailchannels.net include:emsd1.com -all
- google-site-verification=DuQSakw8nejRYV-tnaJV_0ZGluQst39tb3NgyYaS64o
- sophos-domain-verification=6abc80b335f1d618bdb2daa4c7e70d2829e1cb92
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 coyolzf.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits