Email DNS records for alcetra.cz
MX, SPF, DMARC and DKIM records published for alcetra.cz. Registered via Reg-nexum. Domain age: 11 years.
alcetra.cz can receive email: 2 MX records found. Authentication records found: SPF. Not found: DMARC, DKIM (among common selectors).
| Check | Result | What it means |
|---|---|---|
| MX | Found (2) | The domain is configured to receive email. |
| SPF | Found | The record ends with ~all: mail from servers not listed should be treated as suspicious but accepted (soft fail). |
| DMARC | Not found | No DMARC policy tells receivers how to handle messages that fail authentication. |
| DKIM | Not found among common selectors | DKIM can only be confirmed with the selector used by the sender, so this does not mean the domain has no DKIM. |
Last checked: 2026-10-13 (UTC). DNS records can change over time. This report lists public DNS records; their presence does not by itself mean that a domain or its messages are safe.
Next steps
MX records for alcetra.cz
- 10 mx1.active24.com
- 20 mx2.active24.com
Email authentication records for alcetra.cz
SPF record
v=spf1 include:spf.active24.com ~all
Check a specific email address @alcetra.cz
This page checks how alcetra.cz is configured for email. It does not confirm that a specific mailbox exists — to check one address, use the form below.
Domain registration
Created2015-01-23
Updated2021-01-28
Server location
IP address52.166.140.113
CountryNetherlands
ASN8075
Name servers
NS 1ns.nexum.cz.
NS 2ns.webmium.com.
NS 3dns.webmium.com.
NS 4ns2.nexum.cz.
NS 5ns3.nexum.cz.
NS 6freedns1.registrar-servers.com.
NS 7freedns2.registrar-servers.com.
NS 8freedns3.registrar-servers.com.
NS 9freedns4.registrar-servers.com.
NS 10freedns5.registrar-servers.com.
TXT records for alcetra.cz
TXT 1v=spf1 include:spf.active24.com ~all
TXT 2h4ef9fe6b8fe74b00b1a8b2643d1a65a9