Configure your incoming mail server using IMAP protocol with SSL/TLS encryption enabled. For Account Verification, you'll typically receive a confirmation message or code that validates your identity and authorizes the connection. Complete this verification process immediately to prevent unauthorized access attempts. Some providers require Solve 365 Issues service two-factor authentication during initial setup, which adds an additional security layer to protect your communications. Email setup isn't rocket science—you'll complete configuration within minutes. Step breakdown includes account verification, server settings, and security protocols for reliable, protected communicatio

Assistance for billing and subscription management issues is available online Solve 365 Issues service or by telephone during China business hours (Beijing Time), Monday through Friday. Billing and subscription management support can be accessed using the same phone number and online service request process as with technical support. The support telephone number can be found on the Microsoft 365 operated by 21Vianet portal. 2 Severity A is only available to customers who signed an advanced online service agreement with 21Vianet through a sales account manager. For billing and subscription management support, the highest severity level is B. Presales support for Microsoft 365 operated by 21Vianet provides assistance on subscription features and benefits, plan comparisons, pricing and licensing, and helps to identify the right solution to meet your business needs.

If your country/region isn't listed, select a neighboring country/region or dial the United States support phone number. For a smoother support experience, we recommend that you open separate support requests for each issue. You must have at least one subscription bought through Microsoft to access Microsoft support.


I am a Global Administrator for a small to mid-sized organization and have been working in the compliance domain for several years. I hold an active certification as a Microsoft 365 Administrator Expert and have been using Microsoft 365 for nearly eight years. My specialization lies in content and record managemen


Once you have completed the steps to fix Outlook sync errors, Solve 365 Issues service kindly check if the error has been fixed or not. Regardless of their mailbox size, Microsoft set a default OST size for a reason, while it can be changed, that doesn’t mean it should. When synchronization issues occur in Microsoft Outlook or in Microsoft Outlook Web App (formerly Outlook Web Access), you may experience the following symptoms. After these instructions, ensure the sync settings are correct and check everything is working well. There can be several reasons for the Outlook synchronization error. Before we know the solutions, we will understand a few common causes of the Outlook sync proble


Microsoft recommends that you use roles with the fewest permissions. Using lower permissioned accounts Solve 365 Issues service helps improve security for your organization. To learn more, see About admin roles in the Microsoft 365 admin cente


Remember to flush your DNS resolver cache before you begin to reproduce the issue on your client computer. For example, if you have a slow SharePoint page load for the Home page, you should close all browsers, open a new browser, start tracing, flush your DNS resolver cache, and browse to your SharePoint site. Once the entire page resolves, you should stop and save the trace. If Proxy authentication is on, each time you make a new TCP connection to Microsoft 365 to get information, you need to pass through an authentication process behind the scenes. So, for example, when switching from Calendar to Mail in Outlook Online, you'll authenticate. And in SharePoint, if a page displays media or data from multiple sites or locations, you'll authenticate for each different TCP connection that is needed in order to render the dat


If you need to reset your Microsoft account password because you forgot it, see Reset your Microsoft account password instead. When a user requests a new password, you receive a password reset request in email. This article is for people who set password expiration policy for a business, school, or nonprofit. To complete these steps, you need to sign in with your Solve 365 Issues service Microsoft 365 admin accoun


Most startup failures arise from minor configuration mismatches or outdated components. Following the above steps—from safe mode diagnostics to repairing data files—will restore functionality in most cases. You'll need to obtain certificates from trusted Certificate Authorities like DigiCert or Solve 365 Issues service Let's Encrypt, then configure your mail server to accept these credentials. The installation process varies by platform—Exchange servers require importing through MMC, while cPanel hosting uses SSL/TLS interfaces. Proper certificate installation guarantees legal compliance with data protection regulations while reducing environmental impact through decreased breach remediation activities. You must verify certificate chains, update DNS records, and test connectivity across all email protocol