How to Add Seznam and Centrum Accounts

This page has the mail server settings for the two big Czech mail providers: Seznam (seznam.cz, email.cz) and Centrum (centrum.cz, atlas.cz, volny.cz). Find your provider below and use only that block — every value here comes from the provider's own support page, linked in each section.

Seznam — seznam.cz, email.cz

There is no IMAP switch to turn on. Seznam states that POP3 and IMAP are permanently active on every mailbox and cannot be switched off, so don't go hunting for an access setting — that isn't the problem.

What does block mail apps is two-factor verification. If you've turned it on, Seznam requires a separate password that works only for IMAP/POP3, SMTP and CalDAV. Your normal login password stops working in mail apps the moment two-factor is enabled.

To create it:

1. Sign in to your Seznam Account and go to Account Security (Zabezpečení účtu).
2. In the Two-Factor Authentication section (Dvoufázové ověření), on the Application Password row (Heslo pro aplikace), click Set (Nastavit).
3. Enter the new password twice and click Save changes (Uložit změny).

It must not be the same as your account login password. Use it in BlueMail in place of your normal one.

The outgoing server requires authentication. On an Email Profi mailbox, enter your complete email address — including the part after the @ — as the username. Seznam's own instructions: Poštovní programy a aplikace and Mail programs with two-factor verification.

Centrum — centrum.cz, atlas.cz, volny.cz

For an atlas.cz address use imap.atlas.cz and pop3.atlas.cz, with the same smtp.centrum.cz for sending. For volny.cz, all three become imap.volny.cz, pop3.volny.cz and smtp.volny.cz, on the same ports. The operator's own instructions: Adresy poštovních serverů.

A Slovak @centrum.sk or @atlas.sk address is not this service. It is run by a different company on different servers — see How to Add Azet and Centrum.sk Accounts.

Where these go in BlueMail

Try the normal sign-in first. On the password screen, Allow BlueMail to auto-detect the server details of your account is ticked by default — leave it ticked and tap Next. If that works, you're done.

If BlueMail can't find the details, enter them by hand:

1. First account? Tap Continue, type your email address, tap Sign in, then tap Having trouble? Manual Setup under the Sign in button. Already have an account in BlueMail? Go to Settings | Accounts | Add Account.
2. On the Choose provider screen, tap Manual Setup at the bottom.
3. Choose IMAP (or POP3).
4. Fill in the form — it holds the server, Security and Port fields. Pick SSL, TLS or STARTTLS in the Security dropdown to match the table above, and use your full email address as the username.

Full walkthrough: Configuring your account manually.

Already added the account and need to correct a value? Its server details are under Settings | Accounts | [tap the account] | Incoming/Outgoing Settings — see Edit Account.

If your provider isn't listed

We only list settings we could confirm on the provider's own support site — a wrong port is worse than no port at all. If your Czech mailbox is with someone else, get the incoming and outgoing server names, ports and security settings from your provider's own support page, then enter them through Manual Setup exactly as written. Search their help site for "IMAP" or "server settings". While you're there, check two more things: whether they require an app-specific password for mail apps, and whether IMAP access has to be switched on in their webmail first.

Still stuck

Why Won't My Account Add? Quick Fixes covers the fastest checks, and Can't Add My Account works through the other usual causes. If the account added but won't stay connected, see Connection issues, sync failures or missing emails.