Reading time: 7 min · Last verified: August 2026 · SMTPedia editorial team
Sunrise is Switzerland’s second-largest telecom operator, spun off from Liberty Global in November 2024 to trade independently on the SIX Swiss Exchange. Its consumer email service on the @sunrise.ch domain is bundled with residential broadband subscriptions, with legacy addresses at @freesurf.ch also active. To connect Sunrise Mail to Outlook, Thunderbird, Apple Mail, or a mobile client, use the settings below with your Sunrise Mail password.
The Sunrise SMTP server is smtp2.sunrise.ch, not smtp.sunrise.ch. The “2” suffix reflects Sunrise’s post-infrastructure-migration naming and is the single most common setup mistake. Attempting smtp.sunrise.ch will fail with DNS or connection errors. IMAP follows the standard imap.sunrise.ch pattern, so only SMTP has the odd suffix. Additionally, legacy @freesurf.ch addresses (from Sunrise’s earlier free-ISP tier acquired years ago) work with these same settings, and former UPC/Cablecom customers whose accounts were migrated after the 2022 UPC brand consolidation now sit on Sunrise infrastructure. Reference: SMTP 550 5.7.1 guide.
Quick Reference: Sunrise.ch Server Settings
Use these values verbatim, noting the SMTP hostname’s “2” suffix. Sunrise also offers a roaming SMTP configuration on port 587 STARTTLS for use from external networks (hotel Wi-Fi, mobile data outside a Sunrise connection).
| Protocol | Server | Port | Encryption | Authentication |
|---|---|---|---|---|
| SMTP (outgoing, most common) | smtp2.sunrise.ch | 465 (SSL) or 587 (STARTTLS, roaming) | Required | Full email + password |
| IMAP (incoming, recommended) | imap.sunrise.ch | 993 | SSL/TLS | Full email + password |
| POP3 (incoming, single device) | pop.sunrise.ch | 995 | SSL/TLS | Full email + password |
Sunrise.ch SMTP Settings (Sending Mail)
SMTP handles outbound mail. Server smtp2.sunrise.ch on port 465 SSL is the standard configuration for use on a Sunrise fixed broadband connection. Port 587 with STARTTLS works as a roaming alternative when you send from another network (mobile data, hotel Wi-Fi, another ISP’s Wi-Fi). Authentication is mandatory on both ports and uses the full email address as username plus your Sunrise Mail password.
Port 25 is not accepted for authenticated submission. Consumer SMTP has undocumented rate limits typical of a Tier-1 Swiss ISP; expect throttling around 200 recipients per day. Heavier transactional sending needs a dedicated SMTP relay.
Sunrise.ch IMAP Settings (Recommended for Reading)
IMAP syncs folder state across every device. Server imap.sunrise.ch on port 993 SSL/TLS. Sunrise’s own help pages explicitly recommend IMAP over POP for any modern usage. Folder names appear in German, French, Italian, or English depending on your account language preference, and IMAP folder attributes let Outlook, Apple Mail, and Thunderbird map them to Sent, Drafts, and Trash correctly.
Sunrise.ch POP3 Settings (Single-Device Access)
POP3 downloads mail to one device with no server-side sync. Use pop.sunrise.ch on port 995 SSL/TLS. Only pick POP3 if you specifically need offline archival on one device, otherwise IMAP is the correct default. Sunrise recommends IMAP over POP3 in its own knowledge base.
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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Frequently Asked Questions
Why does smtp.sunrise.ch not resolve?
Because the correct hostname is smtp2.sunrise.ch (with a “2” suffix), not the intuitive smtp.sunrise.ch. The “2” reflects Sunrise’s SMTP infrastructure naming, a legacy of past server generations that stuck. Update your client’s outgoing server field to include the “2” and the connection resolves correctly. This is the most common Sunrise email setup mistake, catching users who assume the standard naming pattern applies.
I have a @freesurf.ch address, does it use the same servers?
Yes. Freesurf was a free ISP tier acquired by Sunrise years ago, and legacy @freesurf.ch addresses continue to work on the current Sunrise mail infrastructure. Use the exact address as issued (including @freesurf.ch) as the username, with the same imap.sunrise.ch, pop.sunrise.ch, and smtp2.sunrise.ch server settings as native @sunrise.ch mailboxes. You can also configure it as a sender alias in the Sunrise webmail Accounts settings, letting you send from @freesurf.ch or @sunrise.ch as needed.
I was a UPC/Cablecom customer, do these settings apply to my old email?
Depends on where your migration ended up. Sunrise absorbed the UPC brand in May 2022, and UPC customers were progressively transitioned onto Sunrise infrastructure. If your UPC email address was fully migrated to a @sunrise.ch domain, use the settings on this page. If your old @upcmail.ch or @cablecom.ch address was preserved as a legacy alias, the same Sunrise servers most likely apply, but confirm with Sunrise support or check the Sunrise customer portal for the current server hostnames tied to your account.
How do I reset my Sunrise Mail password?
Sign in to Sunrise Mail webmail via the Sunrise customer portal, open Settings, and use the Change password flow. If you have lost access entirely, use the password recovery link on the Sunrise webmail sign-in page, which goes through the contact information registered on your Sunrise subscription. Sunrise will never ask you to disclose your password by email or SMS; any such request is a phishing attempt and should be deleted.
How secure is Sunrise.ch email in transit?
Sunrise enforces SSL/TLS on all encrypted mail ports (993, 995, 465) for client-to-server transport. Port 587 uses STARTTLS opportunistic encryption after connection. Server-to-server transport follows standard SMTP with STARTTLS. Sunrise infrastructure is located in Switzerland under Swiss data protection law (nLPD since September 2023), with no US CLOUD Act exposure. Native 2FA on IMAP or SMTP is not offered on the consumer tier. For end-to-end message encryption use S/MIME or PGP client-side. Related: SMTP connection guide.
Other Swiss email providers’ settings also include:
Bluewin.ch Email Settings · Infomaniak Email Settings · Netplus.ch Email Settings
About This Guide
The Sunrise.ch email settings on this page were last verified on August 12, 2026 against Sunrise’s official Support pages at sunrise.ch/en/residential/help/sunrise-mail 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 Sunrise. If you find a discrepancy between what is documented here and what Sunrise 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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