Email.cz supports secure email access via POP3, IMAP, and SMTP protocols. Incoming mail uses POP3 at pop3.email.cz with port 995 and SSL/TLS, or IMAP at imap.email.cz with ports 993 (SSL/TLS) or 143 (STARTTLS). Outgoing mail is handled through smtp.email.cz with authentication and TLS encryption on ports 465 or 587. Modern clients like Apple Mail and EmClient use OAuth2 for secure login. Advanced setup options and integrations improve security and synchronization across devices, offering further configuration insights.
Key Takeaways
- Email.cz POP3 server is pop3.email.cz using port 995 with SSL/TLS encryption for secure incoming mail retrieval.
- Email.cz IMAP server is imap.email.cz using port 993 with SSL/TLS or port 143 with STARTTLS for encrypted mail synchronization.
- SMTP server for outgoing mail is smtp.email.cz supporting authentication and TLS encryption on ports 465 or 587.
- Both POP3 and IMAP require username and password authentication to ensure secure access to Email.cz mailboxes.
- Proper setup of server addresses, ports, and encryption protocols guarantees reliable and secure Email.cz email client integration.
Email.cz Server Configuration Details
The Email.cz server configuration details specify the necessary settings for accessing email services via POP3, IMAP, and SMTP protocols. These configuration settings enable users to connect their email clients to the Email.cz email server efficiently. Proper setup guarantees secure and reliable email retrieval and sending functions.
| Protocol | Server Address |
|---|---|
| POP3 | pop3.email.cz |
| IMAP | imap.email.cz |
| Protocol | Server Address |
| SMTP | smtp.email.cz |
The table summarizes the primary configuration settings required to connect to the Email.cz email server, highlighting distinct server addresses for each protocol. These details are fundamental for email client setup and smooth operation.
IMAP Port and Encryption Details
IMAP connections to Email.cz require specific port numbers and encryption methods to maintain secure communication between email clients and servers. Proper configuration of the imap port and encryption protocols guarantees data integrity and privacy during email retrieval.
Email.cz supports the following settings for IMAP access:
- Port 993 with SSL/TLS encryption protocols, providing a secure, encrypted channel for incoming mail.
- Port 143 with STARTTLS, which upgrades an unencrypted connection to a secure one using encryption protocols.
- Mandatory use of modern encryption standards to prevent unauthorized access and safeguard credentials.
These configurations allow users to connect reliably to Email.czβs IMAP server while protecting sensitive information against interception or tampering.
Adhering to these port and encryption requirements is essential for secure email management.
POP3 Server Connection Details
POP3 server connection details for Email.cz specify exact port numbers and encryption methods to guarantee secure retrieval of emails. Proper configuration guarantees robust email security and reduces the need for frequent server troubleshooting.
Users must connect through the designated ports to maintain encrypted communication and seamless access.
Key POP3 server connection parameters include:
- Server Address: pop3.email.cz
- Port Number: 995 (SSL/TLS encryption)
- Authentication: Required with a valid username and password
Utilizing port 995 with SSL/TLS encryption safeguards email content during transmission, preventing unauthorized access.
Adhering to these settings minimizes connection errors and supports efficient server troubleshooting if issues arise.
Correct POP3 setup is essential for maintaining reliable, secure email retrieval on Email.cz.
SMTP Server Authentication Details
Secure SMTP server authentication is essential for sending emails reliably through Email.cz. The email server requires proper authentication protocols to verify user identity, preventing unauthorized access and spam.
Email.cz uses standard authentication methods to guarantee secure transmission of outgoing messages.
Key aspects of SMTP server authentication include:
- Use of SMTP AUTH, requiring a valid username and password before sending emails.
- Support for encryption protocols such as TLS to protect credentials during transmission.
- Compatibility with common authentication protocols like LOGIN and PLAIN for seamless client integration.
These authentication mechanisms enhance security while maintaining ease of use, ensuring that Email.cz users can send emails confidently without risking account compromise or delivery issues.
IMAP, POP3 and SMTP Integration into Gmail

Configure Gmail with external IMAP/POP3/SMTP to send/receive emails from your custom domain through Gmail’s interface. Perfect for professionals managing multiple accounts in one place.
- Google Account β Security β App passwords (2-Step Verification must be enabled).
- Generate App Password for “Mail” β copy 16-character password.
- Gmail β Settings β See all settings β Forwarding and POP/IMAP.
- Enable IMAP β Save Changes.
- Incoming (IMAP):
[IMAP SERVER]:993 SSL| Outgoing (SMTP):[SMTP SERVER]:587 STARTTLS. - Use your full email + App Password (not regular password) for authentication.
β Gmail Result: Send/receive custom domain email directly in Gmail interface with full search/folder integration.
WordPress SMTP Plugin Configuration (WP Mail SMTP + MailPoet)


Configure SMTP in WordPress to fix email delivery issues and prevent spam folder placement. WP Mail SMTP and MailPoet ensure reliable transactional emails, contact forms, and newsletters deliver successfully.
- Install and activate WP Mail SMTP or MailPoet plugin from your WordPress dashboard.
- Navigate to WP Mail SMTP β Settings or MailPoet β Settings β Sending tab.
- Select “Other SMTP” as your mailer method from the dropdown.
- Enter SMTP settings with Port
587and STARTTLS encryption (when available). - Input your full email address and password in the authentication fields.
- Click Save Settings and send a test email to verify the configuration works.
β Result: WordPress contact forms, user registrations, and newsletter emails now deliver reliably via your SMTP server.
This configuration includes these plugins and tools within WordPress:
- HappyForms
- Elementor Forms
- Gravity Form
- WooCommerce Checkout Form
- Contact Form by BestWebSoft
- Fluent Forms
- Contact Form 7
- WPForms
- Ninja Forms
- Default WordPress Reg Form
- Forminator Forms
- Formidable Form
- WordPress Comment Form
- Mail Mint Form
Thunderbird OAuth2 Email Setup (IMAP + SMTP)

Secure IMAP & SMTP using OAuth2 token authentication in Thunderbird. This modern method eliminates password storage for enhanced security.
- Open Thunderbird β Account Settings β Account Actions β Add Mail Account.
- Enter your email address and click Continue to begin setup.
- Select IMAP protocol and choose OAuth2 authentication method.
- Thunderbird opens a browser window β log in to your provider β Grant access permissions.
- Automatic configuration applies: Incoming: use the IMAP server address from the settings table above, port 993, SSL
- Click Done β Thunderbird begins syncing folders and emails immediately.
OAuth2 advantage: Token-based authentication enhances security over traditional password methods while maintaining full functionality.
Outlook IMAP, POP3 & SMTP Setup (Auto + Manual)

Outlook configuration supports both automatic server detection and manual IMAP/POP3/SMTP settings for complete control over your email setup.
π Auto Setup (Recommended):
- Go to File β Add Account β Enter your email address + password.
- Outlook automatically detects IMAP, POP3, and SMTP server settings.
- Click Connect β setup completes in approximately 30 seconds.
βοΈ Manual Setup (Advanced Users):
- Authentication: Use your full email address + password for both servers
BlueMail Two-Factor Authentication + OAuth2 Setup
BlueMail security setup combines OAuth2 authentication with two-factor authentication (2FA) for maximum account protection.
- Open BlueMail β Account Settings β Security β Enable Two-Factor Authentication.
- Link your phone number or authenticator app for 2FA verification codes.
- Add email account β Choose OAuth2 or manual server configuration.
- Enter server details from the table above
- Complete login with 2FA code β enhanced security layer activated.
Apple Mail IMAP Configuration (iCloud + Manual)

Setup IMAP in Apple Mail for seamless synchronization across Mac, iPhone, and iPad devices with full folder support.
- Open Apple Mail β Mail β Add Account β Other Mail Account.
- Enter your name, email address, and password β click Continue.
- Select IMAP account type β Incoming server.
- Next: Outgoing server
- Click Sign In β Mail verifies settings and begins folder synchronization.
iOS Mail App Setup (iPhone/iPad)

iPhone/iPad Mail configuration syncs IMAP folders across all Apple devices with native push notifications.
- Go to Settings β Mail β Accounts β Add Account β Other.
- Enter name, email, password β Next.
- Account Type: IMAP β Incoming:
[IMAP SERVER]Port993SSL. - Enter your outgoing SMTP server and port.
- Next β Save β iOS verifies and syncs immediately.
Push enabled automatically: new emails appear instantly on Lock Screen.
Android Mail App Configuration

Android Gmail/Email app setup works with any IMAP/SMTP provider for native device integration.
- Go to: Settings β Accounts β Add Account β Email (or Gmail app).
- Enter email + password β Next.
- Account Type: IMAP
- Outgoing server details β Require authentication.
- Next β Sign In β Android syncs contacts/calendar if enabled.
Sync interval: 15min default (battery optimized) – change in Account Sync settings.
eM Client Manual IMAP & POP3 Sync Configuration

Configure your email settings on eM Client with either automatic setup or through precise IMAP/POP3 server settings for reliable email synchronization and full folder support.
- Click New Account β Mail
Authentication requires full email address + password for both incoming and outgoing servers.Click Next β Finish β Send/Receive All Folders to begin synchronization.
Mailbird OAuth2 IMAP & SMTP Integration

Secure Mailbird setup using OAuth2 authentication eliminates password storage while providing full IMAP/SMTP functionality.
- Mailbird β Add Account β Enter your email address to begin.
- Choose Manual Setup β OAuth2 authentication method from options.
- Browser opens your provider’s login page β enter credentials β Authorize Mailbird.
- Mailbird receives access token and automatically configures IMAP/SMTP servers.
- Setup completes β full email synchronization begins automatically.
Mailspring OAuth2 IMAP Configuration

Mailspring OAuth2 setup provides secure email access without storing passwords directly in the application.
- Add new email account β Select Custom IMAP configuration option.
- Incoming
IMAP SERVERand outgoingSMTP SERVER. - Mailspring prompts OAuth2 authorization via browser window for secure login.
- Log into your provider account and grant Mailspring access permissions.
- Mailspring automatically manages authentication tokens β seamless email access established.
Postbox Manual IMAP Synchronization

Postbox IMAP setup with manual synchronization control for precise email folder management and immediate updates.
- Add IMAP account β Enter IMAP Server details.
- Outgoing SMTP with full email authentication.
- Postbox connects and displays folder structure automatically.
- Right-click any folder β Get Messages for immediate manual synchronization.
- Manual sync updates local mailbox instantly with server changes (read status, deletions, organization).
SendBlaster SMTP Configuration (Bulk Email)

Bulk email SMTP configuration in SendBlaster requires precise server authentication for reliable campaign delivery.
- Open SendBlaster β Settings β SMTP Configuration section.
- Enter SMTP Server and Port: do not forget to Enable TLS encryption.
- Authentication: Your full email address + password (required).
- Click Test Connection β verify green success indicator appears.
- Save settings β SendBlaster ready for bulk email campaigns and newsletters.
MailJerry IMAP Real-Time Synchronization

MailJerry IMAP setup enables real-time access to email folders stored on your provider’s server across all devices.
- Incoming Server and encryption required.
- Authentication: Full email address + password for secure connection.
- Enable real-time folder synchronization settings in MailJerry preferences.
- Folders update instantly with new messages, read status, and deletions across devices.
Clean.email OAuth2 Synchronization Setup

Clean.email OAuth2 setup provides secure mailbox access without sharing passwords directly with the application.
- Add new account β Select OAuth2 authorization method.
- Your provider opens login portal β enter credentials securely.
- Grant Clean.email permissions for email read/write access.
- OAuth2 token enables real-time message management, filtering, and organization.
- Setup complete β Clean.email maintains secure, ongoing mailbox synchronization.
Common IMAP/POP3/SMTP Troubleshooting
- Authentication failed: Always use your complete email address, never just the username portion.
- Port blocked by ISP: Try alternative SMTP port as fallback.
- SSL certificate errors: Ensure certificate validation is enabled in client settings.
- Slow or no IMAP sync: Check folder subscriptions and enable all folders in client settings.
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Frequently Asked Questions
How Do I Recover a Lost Email.Cz Password?
To recover a lost Email.cz password, one must use the password recovery option on the login page, verify identity through associated contact details, and update credentials promptly to maintain account security against unauthorized access.
Can I Use Email.Cz on Mobile Devices Without App Installation?
Email.cz supports mobile email setup through standard IMAP and POP3 protocols, enabling access via native mobile email apps without requiring a dedicated app installation. This guarantees broad email app compatibility across various devices and platforms.
What Are the Email.Cz Spam Filter Customization Options?
Email.cz offers spam filter customization through email filtering rules, allowing users to define criteria for blocking or allowing messages. This enables tailored control over unwanted emails, improving inbox management and reducing spam effectively.
Is There a Storage Limit for Email.Cz Inboxes?
Email.cz imposes specific email storage limits to manage inbox capacity efficiently. Users must be aware of these restrictions, as exceeding the allocated inbox capacity can prevent receiving new messages until space is cleared or increased.
How Do I Set up Email Forwarding on Email.Cz?
To set up automatic forwarding on Email.cz, the user must access their account settings, enable automatic forwarding, and optionally create filtering rules to specify which emails should be forwarded to another address.
Wrapping Up and Final Verdict
In summary, configuring email.cz requires precise server settings for IMAP, POP3, and SMTP protocols to guarantee seamless email management. Proper authentication and encryption enhance security across platforms. Integration with tools like WordPress SMTP plugins, Sendblaster, MailJerry, Clean.email, and Apple Mail further optimizes email functionality. Following these detailed guidelines allows users to establish reliable and efficient email communication tailored to their specific needs and devices.
About the Author

Alaa Β· LinkedIn
Email infrastructure specialist with 8+ years of hands-on experience in SMTP, deliverability, and email verification. Iβve configured and troubleshot mail systems across Postfix, Exchange, and cloud relays, managed IP reputation and warmup campaigns, and built verification pipelines processing millions of addresses. My work spans DNS authentication (SPF, DKIM, DMARC, BIMI), bounce handling, blocklist monitoring, and compliance frameworks including CAN-SPAM and GDPR. I write every article on SMTPedia to give email professionals, developers, and marketers the accurate, RFC-grounded reference they need.
About SMTPedia
SMTPedia is an independent email industry reference covering SMTP, IMAP, POP3, email deliverability, marketing platforms, DNS authentication, and email verification. Every article is researched from official provider documentation, IETF RFCs, and industry best practices. Settings and configurations are verified quarterly.
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