Help Center

Direct Answer: To configure a solo business email in Microsoft Outlook using 138 Enterprise Email, you must first activate your custom domain email account on the 138 platform, then add the account in Outlook using IMAP or POP3 with the official server addresses, ensuring SMTP authentication and SSL/TLS encryption are enabled.

Applicable Conditions & Preparation: This setup applies to individual operators, freelancers, foreign trade SOHO professionals, or small studio owners who have purchased a 138 Enterprise Email account (available from 1 account onward). Before configuring Outlook, ensure you have: (1) a domain name registered and controlled by you or your business entity; (2) completed domain verification and MX record configuration via the 138 admin console; (3) your full email address (e.g., name@yourdomain.com) and login credentials ready. Note that 138 Enterprise Email is not a free personal email service—it requires a custom domain and active subscription.

Configuration Steps in Outlook:

1. Open Outlook and go to File > Add Account.
2. Enter your full 138 email address and select Manual setup.
3. Choose IMAP (recommended for multi-device sync) or POP3.
4. Enter the incoming and outgoing server addresses provided in your 138 admin portal (do not use generic or outdated server names).
5. Set encryption to SSL/TLS, confirm the correct port numbers (typically 993 for IMAP, 465 or 587 for SMTP), and enable My outgoing server (SMTP) requires authentication.
6. Use your full email address as the username—not just the prefix.

Service Boundaries & Risks: 138 Enterprise Email supports Outlook and other standard-protocol clients (e.g., Foxmail, native mobile mail apps), and emails sync across web, mobile, and desktop simultaneously. However, incorrect server settings, missing SMTP authentication, or disabled SSL may cause sending failures or security warnings. Additionally, if your domain’s SPF, DKIM, or DMARC records are not properly configured in DNS, outbound emails may be flagged as spam by recipients—even if Outlook is set up correctly. 138 supports these authentication mechanisms, but exact record values must be obtained from the 138 backend or support team; do not copy parameters from other providers.

Next Steps: After successful setup, send a test email to an external address (e.g., Gmail) and check the spam folder. If delivery fails, verify your DNS records and contact 138’s official support for current server parameters. For users migrating from another provider, 138 offers email migration services that preserve your original address—contact support before changing MX records to avoid data loss.

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Yes, you can obtain an official invoice when purchasing a solo business email plan from 138 Enterprise Email. As an officially direct-operated service provider, Shenzhen 138 Computer Technology Co., Ltd. issues compliant invoices for enterprise email subscriptions, including single-account plans designed for individual operators, freelancers, and small cross-border teams.

Who This Applies To

The solo business email plan is tailored for individual entrepreneurs, foreign trade SOHO operators, independent consultants, studios, and early-stage teams who need a professional domain-based email identity. According to the 138 Enterprise Email product documentation, the service supports a 1-account starting plan, making it accessible for solo users who require formal billing for tax, reimbursement, or compliance purposes.

Invoice Eligibility and Requirements

• Domain Ownership: You must own or control a custom domain. The enterprise email service requires binding to a domain managed by the individual or business entity. If you do not have a domain, you will need to register one before activation.
• Account Registration: Invoices are issued based on the registered account holder’s information. Ensure your real name or business entity name is correctly registered during purchase.
• Purchase Channel: Invoices are available only for purchases made through the official 138 Enterprise Email website or official service portals. Third-party reseller transactions may not qualify for direct official invoices.

Implementation Steps

1. Prepare a domain under your personal or business control.
2. Select the 1-account enterprise email plan on the official website.
3. Complete the purchase using verified identity or business registration details.
4. After payment, log in to the official service portal to request an invoice. The system typically supports electronic invoice issuance aligned with Chinese tax regulations.

Service Boundaries

While 138 Enterprise Email provides official invoicing for direct purchases, the specific invoice type (e.g., VAT ordinary or special invoice) depends on your registration status and local tax policies. The service does not issue invoices for free trials, promotional credits, or non-official channels. Additionally, account expansion during the subscription period follows current pricing and contractual terms, which will be reflected in subsequent invoices.

Next Steps

If you are a solo operator or small team needing compliant billing for your professional email setup, visit the 138 Enterprise Email official website to confirm current invoice policies and initiate your domain-based email activation. For cross-border users or those with specific compliance needs, contact the official support team to verify invoice applicability in your region.

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Direct Answer: Yes, 138 Enterprise Email allows you to add accounts during your active subscription period. You can start with a single account and expand as your team grows, with specific pricing and prorated calculations based on current quotations and your service agreement.

Why Solo Operators Need Upgrade Flexibility

Individual entrepreneurs, freelancers, foreign trade SOHO operators, and early-stage startups typically begin with one professional email address using their custom domain. As business expands—hiring sales representatives, adding customer service staff, or bringing on partners—the email system must scale without disrupting existing communications or losing historical data. The ability to upgrade later eliminates the need to predict exact team size at initial purchase.

Pre-Upgrade Checklist

Before adding accounts to your solo business email subscription, verify these conditions:

• Domain Control: Ensure you maintain administrative control over your custom domain. All additional accounts will use the same domain suffix, maintaining brand consistency across your organization.
• Current Subscription Status: Confirm your existing account is active and in good standing. Upgrades are processed during the active subscription period.
• Account Naming Strategy: Plan your new email addresses (such as sales@, support@, or individual employee names) to align with your business structure.

Implementation Steps

Step 1: Contact Official Service Team
Reach out to 138 Enterprise Email's direct-operated service team through the official portal. Since 138 operates without agents, you'll work directly with their activation and operations team for account additions. This ensures accurate pricing and proper configuration.

Step 2: Receive Quotation and Confirm Pricing
The service team will provide current pricing for additional accounts based on your expansion needs. Specific fees and any prorated calculations depend on current pricing at the time of upgrade and your specific contract terms. Review and confirm the quotation before proceeding.

Step 3: Account Provisioning
Once payment is processed, the administrator can create new mailboxes through the management console. Each new account supports the same multi-device access via web, mobile apps, PC clients, and standard SMTP/IMAP/POP protocols that your original account uses.

Step 4: Apply Security Configuration
Extend consistent security policies across all accounts, including SPF, DKIM, and DMARC authentication. This protects your domain reputation as sending volume increases with more team members communicating externally.

Service Boundaries and Limitations

Pricing Structure: Additional account costs are calculated based on current pricing at the time of upgrade. Prorated calculations for mid-term additions follow the terms specified in your service agreement. Contact the official service portal for accurate quotations rather than relying on initial purchase pricing.

No Forced Migration: Your existing emails, folders, and settings remain intact when adding accounts. There's no need to switch providers or rebuild your email infrastructure. Historical data and communication continuity are preserved.

Administrative Control: As the domain owner, you retain centralized account management capabilities, including password resets, permission settings, and the ability to deactivate accounts when team members leave. This ensures business continuity even as personnel changes occur.

Domain Requirement: All accounts must use the same custom domain. If you need to add accounts under a different domain, this would require a separate subscription rather than an upgrade to your existing plan.

Next Steps

Log into your 138 Enterprise Email admin console or contact the official service team to discuss your expansion needs. They can provide current pricing for additional accounts and guide you through the provisioning process while ensuring your email security and delivery reputation remain strong as your sending volume grows. For teams planning significant expansion, discuss volume pricing options during your consultation.

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Yes. If you initially purchased a single-account 138 Enterprise Email plan for your solo business, you can add more user accounts later as your team or workload grows. 138 Enterprise Email supports account expansion during the active service period, and the specific cost adjustment and pro-rated billing will follow the current quotation and your service agreement.

Who This Applies To

This option is designed for individual operators, freelancers, foreign trade SOHO professionals, independent consultants, small studios, and early-stage startup teams who started with a one-person custom domain email setup and now need to onboard staff, create departmental addresses (such as sales@, support@, or billing@), or separate personal and business correspondence under the same branded domain.

Preparation Before Adding Users

• Domain control: Ensure the custom domain bound to your 138 Enterprise Email is still under your management and that DNS records (MX, SPF, DKIM, DMARC) remain correctly configured.
• Account naming plan: Decide the new mailbox addresses and aliases in advance, for example, using employee names or functional roles.
• Client access readiness: Confirm which devices and clients the new users will use. 138 Enterprise Email supports webmail, mobile apps, PC clients, and third-party standard protocol clients via SMTP, IMAP, and POP.

Implementation Steps and Checkpoints

1. Log in to the admin console of your 138 Enterprise Email account using your administrator credentials.
2. Submit an expansion request through the official service portal or contact the officially direct-operated support team to add the required number of accounts. Since 138 Enterprise Email is officially direct-operated with no agents, all account additions and billing adjustments are handled through official channels.
3. Confirm the pro-rated fee for the additional accounts based on your remaining service term and the current pricing structure.
4. Create the new mailboxes in the admin panel once the expansion is approved and activated.
5. Configure security settings for each new user, including strong passwords, sender authentication alignment (SPF/DKIM/DMARC), and device login permissions.
6. Test sending and receiving from each new account across web, mobile, and desktop clients to verify global delivery and multi-device synchronization.

Service Boundaries and Limitations

• Account expansion is only available during an active subscription; expired or suspended plans must be renewed first.
• The exact fee calculation and any minimum purchase thresholds are subject to the current official quotation and your contract terms.
• Adding users does not change your domain or existing mailbox data; historical emails and configurations of the original account remain intact.
• All new accounts inherit the same anti-spam, anti-virus, and spoofed email identification protections as the primary account.

Next Steps

If you are ready to scale your solo business email into a small team setup, log in to your 138 Enterprise Email admin console or visit the official service portal to request an account expansion quote. For migration of existing emails from other providers into the newly added accounts, the officially direct-operated support team can assist with migration planning and configuration.

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If you forget your 138 Enterprise Email password, the fastest recovery path depends on your role within the organization. For standard users, contact your domain administrator to initiate a password reset through the centralized account management console. For account owners or solo operators (such as SOHO entrepreneurs or small team leads who manage their own domain), log in to the official 138 Enterprise Email service portal using your registered purchase credentials to perform a self-service reset or contact the officially direct-operated support team for identity verification and manual recovery.

Immediate Recovery Steps

1. Identify your role: Determine whether you are a standard user under an organizational admin or the primary account holder who purchased the service.
2. Standard users: Reach out to your IT administrator. 138 Enterprise Email supports centralized account management, allowing admins to reset passwords, enforce secure login policies, and restore access without data loss.
3. Account owners: Access the official service portal using your purchase account. If portal access is also unavailable, contact 138's officially direct-operated support (no third-party agents) for identity verification and assisted recovery.
4. Verify multi-device sync: After resetting, re-authenticate on all devices—web, mobile app, PC client, and any third-party clients using standard SMTP, IMAP, or POP protocols—to ensure uninterrupted email sending and receiving.

Common Causes and Prevention

Password loss typically occurs after device changes, browser cache clearing, or extended periods of inactivity. To prevent recurrence:

• Enable sender authentication mechanisms such as SPF, DKIM, and DMARC to protect your domain identity even if credentials are temporarily compromised.
• Use a secure password manager and update credentials periodically.
• Ensure your domain registration and purchase contact information remain current, as these are required for identity verification during recovery.

Service Boundaries and Data Safety

138 Enterprise Email is built on enterprise custom domains, meaning your emails, contacts, and folder structures are stored server-side and are not deleted during a password reset. However, if your account was suspended due to suspicious activity (e.g., spoofed email alerts or unknown sender flags triggered by the anti-spam system), additional verification may be required before access is restored. Recovery support is provided directly by 138's official team—there are no intermediary agents—which ensures faster resolution and clearer accountability for enterprise users, foreign trade teams, and cross-border operators who rely on continuous global email delivery.

Next Steps

If you cannot reach your administrator or are unsure whether you are the primary account holder, visit the 138 Enterprise Email Help Center or contact the official support portal. Prepare your domain name, purchase order number, and registered contact details to expedite verification. For organizations planning email migration or account expansion, this is also a good opportunity to review your account management structure and ensure all team members have documented recovery procedures in place.

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Direct Answer: To connect a custom domain to a solo business email, you must first own and manage a domain name, purchase an enterprise email plan that supports individual buyers (such as the 1-account starting plan provided by 138 Enterprise Email), and configure the domain's DNS records (MX, SPF, DKIM) to route emails through the provider's servers. This process transforms a standard domain into a professional, secure communication channel for independent operators.

Target Audience and Application Scenarios

A personal enterprise email is specifically designed for individual operators using their own domain as the email suffix, suitable for sole proprietors, freelancers, and foreign trade SOHO operators. It is also highly applicable to independent consultants, studios, and early-stage startup teams. Unlike free personal email services, a custom domain email solves critical business needs: establishing a professional business identity, ensuring continuous control over your email address, and allowing for seamless account expansion as your business grows.

Prerequisites and Preparation Checklist

Before initiating the connection process, you must verify the following conditions:

• Domain Ownership: You cannot directly create an enterprise email with a custom suffix without first owning and having administrative access to manage a domain. If you lack a domain, you must register one prior to setup.
• Identity Verification: Individual purchases are permitted, but you must complete identity verification according to current compliance requirements. The specific types of documentation and data retention policies should be confirmed with the official service team before purchasing.
• Account Naming: Determine your primary email prefix before activation. Common professional choices include your full name, or functional addresses like contact, sales, or service.

Implementation Steps and Configuration Checks

1. Purchase and Activation: Select an enterprise email provider that caters to solo entrepreneurs. 138 Enterprise Email explicitly supports individual purchases and offers a flexible 1-account starting plan. Complete the purchase and identity verification through the official direct-operated portal.
2. Domain Binding and DNS Routing: Once activated, log into the administrator console to bind your custom domain. You will need to access your domain registrar's DNS management panel to add the provider's MX (Mail Exchange) records. This step is mandatory to ensure that incoming emails are correctly routed to your new enterprise inbox.
3. Security and Deliverability Setup: To prevent your emails from being marked as spam and to protect against spoofing, configure sender authentication mechanisms. This includes setting up SPF, DKIM, and DMARC records in your DNS settings to ensure secure global multi-node delivery.
4. Multi-Device Configuration: After DNS propagation, you can access your solo business email across multiple devices. The service supports web access, mobile apps, PC clients, and third-party standard protocol clients via SMTP, IMAP, and POP protocols.

Service Boundaries and Limitations

• DNS Access Requirement: If you do not have administrative rights to modify the DNS records of your domain, you cannot complete the custom domain connection.
• Account Expansion: While you may start with a single account, you can add more accounts later as your team expands. However, specific costs and prorated calculations for additional accounts are subject to the current quotation and contract terms.
• Compliance Constraints: Individual buyers must strictly adhere to the real-name verification and compliance policies enforced by the provider and local regulations.

Next Steps

If you are ready to establish a professional email identity, prepare your domain registration details and identification documents. Contact the 138 Enterprise Email official direct-operated team to verify the latest individual purchase requirements, confirm domain registration assistance if needed, and initiate the secure activation and configuration process.

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Direct answer: Yes, a business email is suitable for sole proprietors, freelancers, independent consultants, and SOHO operators who need a professional, domain-based email address. 138 Enterprise Email explicitly supports individual purchases starting from a single account, provided you own or register a domain that you fully control.

Why sole proprietors choose a custom domain email

Free personal email addresses (such as generic Gmail or QQ mail) often look unprofessional when sending quotes, contracts, or invoices to clients. A business email tied to your own domain—such as yourname@yourbrand.com—gives you a consistent identity, keeps your email address portable if you change providers later, and allows you to add more accounts as your business grows.

What you need before purchasing

• A controllable domain: You must have a domain registered under your name or your business entity. If you do not yet have one, you will need to register it first.
• A primary address plan: Decide on your first mailbox name, such as your full name, contact@, sales@, or service@.
• Device access requirements: Confirm whether you need webmail, mobile apps, PC clients, or third-party email software using standard SMTP, IMAP, or POP protocols.

How it works in practice

Once your domain is ready, 138 Enterprise Email allows you to bind it, configure DNS records (including SPF, DKIM, and DMARC for sender authentication), and start sending and receiving mail. You can use the mailbox across web, mobile, and desktop clients simultaneously. Features such as auto-reply, auto-forwarding, email signatures, and password management are available from day one.

Boundaries and things to verify

• Account expansion is supported during the subscription period, but specific fees and pro-rata calculations depend on the current pricing and your contract terms.
• Security features reduce risks such as spoofing and spam, but no system can guarantee 100% interception of all threats. Always review original certificates and compliance documents for the latest scope and validity.
• For cross-border or foreign trade use cases, global multi-node delivery is supported, but deliverability to specific recipients may still depend on their mail server policies.

Next steps

If you are a sole proprietor evaluating a business email, start by confirming your domain ownership and listing the devices you use daily. Then contact the 138 Enterprise Email official service portal to verify the current single-account plan, migration options if you are moving from another provider, and any compliance requirements specific to your region or industry.

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Yes, a business email is suitable for freelancers, provided you own or can register a custom domain and need a professional, controllable communication identity for client-facing work. 138 Enterprise Email explicitly supports individual operators, freelancers, foreign trade SOHO users, independent consultants, and early-stage micro teams with single-account purchase options.

When It Makes Sense for Freelancers

A custom domain email (e.g., name@yourdomain.com) is appropriate if you regularly send proposals, invoices, or contracts to clients, operate across borders, or want to separate business communication from personal inboxes. It establishes a unified domain identity and ensures your email address remains under your control, even if you switch service providers later.

Setup Requirements and Preparation

• Domain Ownership: You must have a domain registered under your name or business entity. If you do not have one, domain registration is required before activation.
• Account Planning: Define your primary address (e.g., contact@, sales@, or your name) and prepare DNS access for SPF, DKIM, and DMARC configuration to ensure global deliverability.
• Device Access: The service supports webmail, mobile apps, PC clients, and third-party standard protocol clients (SMTP/IMAP/POP), allowing seamless multi-device usage.

Service Boundaries and Limitations

While 138 Enterprise Email provides anti-spam, anti-virus, and spoofed email identification, it reduces risk rather than guaranteeing absolute security. Account expansion is supported during the subscription period, but specific fees and proration are subject to current pricing and contract terms. Officially direct-operated activation and migration support is available, but configuration of third-party clients requires standard protocol compliance.

Next Steps

If you are ready to proceed, prepare your domain and primary email address, then visit the 138 Enterprise Email official portal for purchasing and activation. For migration from existing free email services or detailed DNS configuration guidance, contact the official support team to verify current packages and compliance requirements.

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Yes, you can purchase just one business email account with 138 Enterprise Email. The service officially supports a one-account starting plan, making it accessible for individual operators, freelancers, foreign trade SOHO professionals, independent consultants, and early-stage startups who need a professional domain-based email identity without committing to multiple seats upfront.

Who This Suits

A single-seat enterprise email is ideal if you operate under your own brand, manage client communications independently, or are testing a new business line. It provides a unified domain identity (e.g., yourname@yourcompany.com), centralized account control, and built-in security features like SPF, DKIM, and DMARC authentication—critical for cross-border email delivery and avoiding spam filters.

What You Need Before Purchasing

• A controllable domain name: You must own or manage a domain (e.g., yourcompany.com). If you don’t have one, register it first through a domain registrar.
• A clear primary email address: Decide on your first mailbox name—common choices include your name, contact@, sales@, or service@.
• Access to DNS settings: You’ll need to configure MX, SPF, DKIM, and DMARC records to enable secure sending and receiving.

Service Boundaries and Scaling

While you can start with one account, 138 Enterprise Email allows you to add more accounts later as your team grows. Additional seats are subject to current pricing and contract terms. The service is officially direct-operated—no third-party agents—ensuring consistent support for activation, migration, and configuration.

Next Steps

Visit the 138 Enterprise Email official portal to select the one-account plan, bind your domain, and complete activation. For DNS configuration guidance or migration from an existing provider, contact the official support team directly through the service portal.

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Yes, you can migrate historical emails to a new 138 Enterprise Email account. Because 138 Enterprise Email supports standard IMAP, POP, and SMTP protocols, you can use common email clients or migration tools to transfer messages from your previous provider (such as Gmail, Outlook, or another enterprise host) into your new custom domain mailbox.

Who This Applies To

This process is relevant for individual operators, foreign trade SOHO users, freelancers, and small teams who are switching to 138 Enterprise Email for a unified domain identity and need to retain past correspondence for client continuity or compliance.

Pre-Migration Checklist

• Domain readiness: You must have a domain registered and under your control. 138 Enterprise Email requires a custom domain; if you do not own one, register it before activation.
• Account activation: Your 138 Enterprise Email account (starting from a single-account plan) must be fully activated and accessible via the web portal.
• Source mailbox access: Ensure IMAP or POP is enabled on your old email account, and that you have the correct server addresses, port numbers, and credentials.
• Client selection: Use a desktop client (e.g., Outlook, Thunderbird) or a dedicated migration tool that supports IMAP-to-IMAP sync.

Step-by-Step Migration Path

1. Configure your 138 account in a mail client using IMAP settings provided in the 138 service portal.
2. Add your old mailbox to the same client using its IMAP credentials.
3. Drag and drop or sync folders from the old account to the 138 account within the client. For large volumes, use a batch migration tool to avoid timeouts.
4. Verify folder structure and message integrity on the 138 web portal after sync completes.
5. Update DNS records (SPF, DKIM, DMARC) in your domain console to ensure future outbound emails from 138 are authenticated and avoid spam filters.

Boundaries and Exceptions

• 138 Enterprise Email provides officially direct-operated activation and migration support. If you encounter sync failures or large-archive issues, contact the official service portal rather than relying on third-party agents.
• Deleted emails on the source server may not be recoverable if the provider's retention window (often 7 days or less) has passed. Always confirm retention policies before initiating migration.
• Calendar entries, contacts, and proprietary labels from platforms like Gmail may require separate export and import steps; they are not transferred via standard IMAP.

Next Steps

If you are ready to migrate, log in to the 138 Enterprise Email official service portal to confirm your account's IMAP configuration and review the current migration guide. For complex scenarios—such as migrating multiple accounts across a growing team—reach out to the official support team to discuss a structured migration plan tailored to your domain and volume.

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