Sina serves an online mail service used across their region. Setting it up in a standard mail client requires the correct incoming and outgoing server addresses, port numbers, and encryption modes. This guide documents the exact values that work today so you can access Sina through the IMAP/POP3/SMTP trio that every major email client supports.
The specific configuration for Sina reflects broader trends in the regional email market. Regional providers typically maintain their own mail infrastructure and update server hostnames or authentication rules independently of the global platforms, which is why generic setup instructions often fail when a client only offers auto-discovery for the largest brands.
Below you will find the current IMAP, POP3, and SMTP settings for Sina, along with the encryption modes and authentication requirements each protocol demands. Copy these values into your email client of choice and both inbound and outbound mail should start flowing on the first connection attempt.
Key Takeaways
- IMAP server: imap.sina.com, port 993 with SSL/TLS for secure message synchronization across devices.
- POP3 server: pop.sina.com, ports 110 (non-SSL) or 995 (SSL) for downloading emails with optional encryption.
- SMTP server: smtp.sina.com, ports 465 (SSL), 25 or 587 (TLS) for sending emails securely with authentication.
- Enable SSL/TLS encryption and authentication using username and password for all incoming and outgoing server connections.
- OAuth and two-factor authentication enhance security, supporting token-based login and reducing password exposure risks.
Sina Email Server Configuration
How does one correctly configure the Sina email server to guarantee seamless communication? Proper setup involves enabling email encryption to secure data transmission and activating spam filtering to minimize unwanted messages. Users must input the correct server addresses and port numbers to ensure smooth connectivity. Below is a configuration summary for Sina email server essentials:
| Setting | Value |
|---|---|
| Incoming Server | pop.sina.com or imap.sina.com |
| Outgoing Server | smtp.sina.com |
| Email Encryption | SSL/TLS |
| Spam Filtering | Enabled by default |
| Authentication | Required (username & password) |
Adhering to these parameters protects users from unauthorized access and reduces spam, thereby streamlining email communication on Sinaβs platform.
IMAP Server Connection Details
Among the methods for accessing Sina emails, the IMAP protocol offers advantages in managing messages directly on the server, allowing synchronization across multiple devices.
The IMAP server connection details are essential for seamless email access with maximum security and performance. Key aspects include:
- Server Address: imap.sina.com
- Port Number: 993, supporting SSL/TLS for robust email encryption
- Connection Protocol: Secure IMAP to minimize server latency and ensure timely message retrieval
These settings ensure encrypted communication between the client and server, protecting sensitive data during transmission.
Additionally, the use of SSL/TLS reduces the risk of interception, while efficient server response times help maintain low server latency, enhancing the user experience.
Proper configuration of IMAP is vital for reliable, secure access to Sina emails across platforms.
POP3 Server Access Details
Where can users find the essential details to configure POP3 access for Sina emails? The precise information needed to connect to the Sina email server via POP3 is typically provided by Sinaβs official support or help center. Proper account setup requires the correct server address, port number, and security settings to guarantee seamless email retrieval.
Key POP3 server access details include:
- Server address: pop.sina.com
- Port: 110 (non-SSL) or 995 (SSL)
- Security: SSL/TLS option for encrypted connection
These parameters must be entered accurately within the email clientβs account setup interface to enable successful communication with the Sina email server.
With these POP3 settings, users can download emails directly to their devices for offline access while maintaining synchronization with Sinaβs servers.
SMTP Server Configuration Details
What are the essential parameters required to configure the SMTP server for Sina email? Proper SMTP server configuration ensures reliable email sending with robust server security and email encryption.
The key parameters include:
- SMTP Server Address: smtp.sina.com
- Port Number: Commonly 465 for SSL or 25/587 for TLS, critical for encrypted communication
- Authentication: Username and password to verify identity and maintain server security
Enabling SSL or TLS protocols guarantees email encryption, safeguarding messages during transmission.
Correctly setting these parameters is indispensable for seamless email delivery and protection against unauthorized access. Users must ensure their client supports secure connections to comply with Sinaβs security standards.
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.
More Popular Email Settings Guides
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| T-Online.de SMTP Settings | π©πͺ Germany | ISP |
| Fibertel.com.ar Webmail | π¦π· Argentina | ISP |
| QQ Mail SMTP Server | π¨π³ China | Global |
| Volny Mail Settings | π¨πΏ Czech Republic | ISP |
| Freemail.hu IMAP Settings | ππΊ Hungary | Regional |
| Etisalat/EIM Mail Settings | π¦πͺ UAE | ISP |
| Hotmail IMAP Settings | π Global | Global |
| 126.com IMAP Server Settings | π¨π³ China | Regional |
| Waoo Mail SMTP/IMAP | π©π° Denmark | ISP |
| GMX SMTP Server Settings | π Global | Global |
| 163.com IMAP Server Settings | π¨π³ China | Regional |
| Webmail.co.za IMAP Settings | πΏπ¦ South Africa | Regional |
Frequently Asked Questions
How Do I Recover a Forgotten Sina Email Password?
To recover a forgotten Sina email password, the user should initiate the password reset process via the Sina account recovery page, providing required verification details to confirm identity and regain access securely to their email account.
Can I Use Sina Email on Mobile Devices Without Manual Setup?
Sina email supports mobile setup with automatic configuration for popular email apps, simplifying access. However, some devices may require manual input of server details to guarantee proper synchronization and functionality across all mobile platforms.
What Are the Security Features of Sina Email Accounts?
Sina email accounts utilize encryption protocols such as SSL/TLS to secure data transmission. Additionally, account verification mechanisms, including two-factor authentication, enhance security by preventing unauthorized access and protecting user information from potential threats.
How Do I Block Spam Emails in My Sina Inbox?
To block spam emails in a Sina inbox, users enable spam filters and configure email filtering settings. These tools automatically identify and divert unwanted messages, reducing clutter and enhancing inbox security effectively.
Is There a Limit to the Number of Emails I Can Send Daily?
Sina Mail enforces an email sending quota to prevent abuse, imposing a daily email limit on users. This limit varies depending on account type and activity, ensuring secure and efficient service while avoiding spam or overload.
Other Email Settings for providers in China also include:
About This Guide
The Sina email settings on this page were last verified on April 12, 2026 against the provider’s official help documentation, publicly available postmaster resources, and independent user setup reports. Email server configurations rarely change once established, most providers issue major updates only every one to two years, typically tied to phasing out unencrypted protocols or migrating to new mail infrastructure. SMTPedia re-verifies these settings quarterly and after any announced changes from Sina. If you find a discrepancy between what is documented here and what Sina currently requires, please report it so we can update the reference.
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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