What MailCube provides
MailCube (邮立方) is a brand providing custom domain email deployment, configuration and technical support. This website presents our brand, services and policies. It does not send or receive email, register live mailboxes or operate an email marketing platform.
Our scope may include domain configuration, dedicated account creation, sending and receiving setup, webmail guidance, DNS guidance, maintenance and troubleshooting. Account counts, storage, capabilities, fees and support arrangements must be agreed before engagement.
How custom domain email is deployed
Customers must have the right to use the domain and the necessary administrative access. We review the domain and existing mail records, then help configure MX, SPF, DKIM and DMARC as required by the selected plan, including domain ownership verification.
Cloudflare may provide website hosting, network protection or DNS. These services do not imply that Cloudflare directly hosts a complete sending and receiving mailbox service. The selected third-party providers supply the actual email, webmail or SMTP capabilities.
Account creation and handover
We confirm usernames, account counts, permissions and use cases before configuring accounts under the provider’s requirements. We then set up access and test sending, receiving and authentication.
Handover includes the agreed configuration notes and usage guidance. Credentials should be delivered through an appropriate, agreed channel. Customers should change initial passwords, protect administrator access and enable multifactor authentication where available. This website does not ask visitors to submit credentials.
Legitimate business use cases
The service supports normal communications with customers, suppliers, partners and internal teams: responding to inquiries, discussing quotations, sending order or service notices, and communicating within legitimate business relationships with appropriate authorization.
Availability for transaction notices or other sending scenarios depends on the actual plan, provider review and applicable rules. Marketing communications require an appropriate legal basis, compliance with applicable consent and unsubscribe requirements, and permission under the provider’s policies.
Where recipients come from
Customers determine their own recipients for normal business communication and are responsible for a lawful basis for obtaining and using recipient information. Sources may include direct business inquiries, existing customer or contractual relationships, partner contacts, or addresses voluntarily supplied and authorized for the relevant purpose.
MailCube does not purchase, scrape or sell email address lists, generate guessed address lists, or support unauthorized bulk spam. We do not provide tools for bypassing recipients’ choices or provider reviews.
Third-party email services and review
Actual email sending relies on third-party providers and is subject to their terms, sending limits, anti-spam rules and review policies. Receiving and webmail capabilities likewise depend on the selected third-party plan.
Delivery depends on domain reputation, authentication, content, recipient policies and other factors. MailCube does not guarantee inbox placement, unlimited accounts or sending, or absolute security.
Anti-spam and abuse prevention
Spam, phishing, fraud, impersonation, malware, unauthorized bulk sending, address scraping, harassment and evasion of provider limits are prohibited. Customers are responsible for their content, recipient basis and account activity.
Credible abuse signals may lead to verification, corrective requests, suspension of relevant configuration support or referral to the actual provider, subject to the contract, applicable law and provider rules.
Inquiries and service agreement
Service provider: 邮立方 MailCube. Consultation email: wxh@iwxh.cn. Phone: 1858 1818 018.
Scope, pricing, account limits, support arrangements, third-party subscriptions and renewal responsibilities must be separately agreed before engagement. This overview does not replace the specific service agreement.
Discuss my email setup
A clear conversation about your domain, accounts, service limits and ongoing support.
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