Overview
If you encounter email client issues, check the client's help documentation or error messages. This article provides additional solutions.
By default, third-party client access is disabled for new Alibaba Mail users.
Domain administrators can enable or disable third-party client access as needed.
For better account security, enable app passwords for third-party clients:
Admin enforcement: How can a domain administrator enable app passwords for third-party clients?
Per-user setup: Enable and set an app password for a third-party client
Usage and configuration
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How to configure an Alibaba Mail account in a mobile email client
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How to set up new email notifications in the Alibaba Mail mobile app
Common errors
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Security certificate cannot be verified when signing in to Outlook with SSL encryption
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Error when sending emails from some email clients: 553 authentication is required
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Some emails from the web version are missing in a third-party client
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Failed to send email from Outlook with error code 0x80042108
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Error code 0x800C0133 occurs when using Alibaba Mail in Outlook Express
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Emails are delayed after configuring an Alibaba Mail account in a third-party client
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Incorrect password error when configuring Alibaba Mail in Outlook and Foxmail
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Failed to send email from Outlook with error code 0x800CCC78
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Error when using a third-party client to send or receive emails: No such host is known