Push email is a technology that delivers emails to your device in real-time as soon as they arrive on the server, rather than requiring you to manually check for new messages. However, it does not guarantee 100% delivery of emails. While push email ensures that emails are sent to your device promptly when the server has them, factors like network issues, device settings, or server problems can still prevent delivery.
For example, if your device is offline or in a poor network area, push notifications may be delayed or fail to reach your device, even though the email is already on the server. Additionally, if the email server itself encounters issues (e.g., downtime or misconfiguration), emails may not be pushed at all.
To ensure reliable email delivery, cloud-based email services often combine push technology with other mechanisms like polling or background synchronization. For businesses, using a robust email hosting solution like Tencent Cloud Email Service can improve reliability. It offers high availability, spam filtering, and secure delivery, reducing the risk of undelivered emails. Additionally, Tencent Cloud's global network infrastructure ensures fast and stable email transmission.