Yes, there is typically a size limit on emails that can be transferred via push mail. Push mail is a method of delivering email messages to a mobile device in real-time as they arrive on the server. The size limit is usually imposed by the email service provider or the mobile device's email client to ensure efficient data transfer and to prevent excessive use of bandwidth or storage.
For example, many email service providers set a size limit of around 25 MB for individual email messages, including attachments. If an email exceeds this limit, it may be split into multiple parts or the attachment may need to be downloaded separately. Some mobile email clients may also have their own size limits, which can be lower than the provider's limit.
In the context of cloud services, if you are using a cloud-based email solution, such as those provided by Tencent Cloud, you can manage and optimize email delivery settings, including size limits, through the cloud platform's management console. Tencent Cloud's email services, such as Tencent Enterprise Email, offer robust email delivery capabilities with customizable settings to meet the needs of different organizations, including size limits for emails and attachments. This ensures that your push mail service operates efficiently and meets the requirements of your users.