Because the Tencent Mail supports the client software to receive emails from the last 30 days by default, if you use Outlook, Foxmail, or mobile APP to receive emails through IMAP, POP, etc., please adjust the relevant options:(1)Log in to the mailbox through a computer web browser, click [Set] - select [Client Settings]
(2)In the Receiving Options, change the default to receive emails from the last 30 days to receive all emails
（3）On this client setup page, make sure the client receive mail option is enabled
The client device configured with IMAP or POP?The main difference is that IMAP(Internet Messaged Access Protocol) always syncs with mail server so that any changes you make in your mail client (Microsoft Outlook, mobile phone) will instantly appear on your webmail inbox.On the other hand, in POP(Post Office Protocol), your mail client account and mail server are not synced.For example, Outlook must use the IMAP protocol to connect the mailbox to achieve folder synchronization.
How to check email calendar on mobile phone?You can install Tencent's QQ Mail APP（QQ邮箱APP）through the mobile application market (after installation, go to Settings-Application-Turn on the sync Tencent mailbox calendar function)
