Yes. You can verify any @Centrum.cz address in real time with a direct SMTP handshake that provides 99.7% accuracy. Centrum.cz is operated by Centrum Holdings, runs 4 mail servers, enforces 3 of 3 authentication standards, and is currently responding to SMTP.
Every check returns one of three clear outcomes so you know exactly what to do with the address.
The mailbox exists and accepts mail. Send with confidence, the address is deliverable.
The mailbox does not exist, is disposable, or will hard-bounce. Remove it to protect your sender reputation.
The server is catch-all or greylisting, so existence cannot be confirmed. Send selectively and watch engagement.
centrum.cz publishes 4 MX records. The primary mail exchanger is centrum-cz-10mx1.eco-mx.cz, hosted by eco-mx.cz, and it is currently reachable and answering SMTP. Mail is routed through these servers in priority order, lowest number first.
| Priority | Hostname | IP | Status |
|---|---|---|---|
| 10 | centrum-cz-10mx1.eco-mx.cz | 46.255.225.8 | Reachable |
| 10 | centrum-cz-10mx2.eco-mx.cz | 46.255.227.8 | Reachable |
| 20 | centrum-cz-20mx2.eco-mx.cz | 46.255.225.8 | Reachable |
| 20 | centrum-cz-20mx1.eco-mx.cz | 46.255.227.8 | Reachable |
220 antispam115.centrum.cz ESMTPYes. centrum.cz is a valid email provider, operated by Centrum Holdings. Addresses are persistent and real mail reaches a genuine recipient. Individual mailboxes still go stale, so verify each one before you send.
A live SMTP handshake connects to Centrum.cz's mail server and asks whether the mailbox exists using the RCPT TO command, without ever transmitting a message. The recipient never sees the check.
Each address runs through 30+ checks including SMTP existence, catch-all detection, role-account filtering, and disposable matching. The same engine has verified billions of addresses since 2012.
Every unverified address is a gamble. Here is what happens when you skip verification and mail a list that has not been cleaned.
Free inboxes get abandoned constantly. Verification drops the dead centrum.cz mailboxes before you mail them.
Mistyped centrum.cz addresses fail a real SMTP check, so they never turn into a hard bounce.
A clean list keeps your bounce rate low, and a low bounce rate is what protects inbox placement on a big send.
Mailing only live centrum.cz addresses raises every rate that matters: opens, clicks, and replies.
Centrum.cz is Centrum Holdings, registered through REG-CZNIC and first seen Jul 12, 1997.
centrum.cz is a Czech email and internet portal operated by Centrum Holdings, a Czech digital media company. The platform has been one of the prominent Czech web portals since the late 1990s, offering free email, search, and content services to Czech-speaking users. Centrum.cz email provides standard webmail features with spam filtering and mobile access.
centrum.cz supports SPF authentication for outbound email and publishes DNS records for sender validation. DKIM and DMARC policies are implemented according to the platform's infrastructure standards. The service complies with EU data protection regulations (GDPR) and applies Czech-market-appropriate anti-spam filtering.
The centrum.cz mail servers perform recipient verification and reject messages to nonexistent addresses at the SMTP level. The domain does not function as a catch-all. Rate limiting may be applied to inbound connections from senders without established reputation with Czech email infrastructure.
When emailing centrum.cz users, authenticate your domain with SPF and DKIM records. Czech email providers respond well to properly formatted messages with clear sender identification. Maintain clean mailing lists, include unsubscribe mechanisms, and ensure compliance with EU anti-spam regulations for best deliverability.
Upload a CSV or TXT list of Centrum.cz addresses to the bulk email verifier. Every address runs through a live SMTP handshake plus catch-all, role-account and disposable detection, and you download a clean list when processing completes. For real-time checks at signup, use the real-time email verification API.
CSV or TXT with one email per line. No formatting needed.
Each Centrum.cz address is checked with a live server handshake.
Get a verified list with status codes, risk flags, and catch-all detection.
Pay as you go. No subscriptions, and credits never expire.
Everything about verifying email at this domain.
Yes, centrum.cz is a valid free email domain operated by Centrum Holdings. It provides permanent email accounts to users.
No, centrum.cz is not a disposable or temporary email provider. It offers permanent email accounts with standard email features.
centrum.cz uses mail servers operated by Centrum Holdings. Check the MX records section above for specific server details.
Yes, with proper opt-in consent. Follow email best practices and ensure SPF, DKIM, and DMARC authentication is configured for your sending domain.
Use BulkEmailChecker to verify centrum.cz addresses via SMTP checks. Verification behavior varies by provider. Our tool handles provider-specific rate limiting automatically.
Upload a CSV or TXT list to the bulk email verifier. Every address runs through 30+ checks including SMTP existence, catch-all detection, role-account, and disposable matching. Processing time depends on list size.
99.7% accurate using a direct SMTP handshake with centrum.cz's mail servers, the same engine that has verified billions of addresses since 2012.
Other free email provider domains we have audited.