Baidu to do mailbox

Baidu has not provided mailbox services, mainly feel that the existing mailbox is already good enough to use. But to be honest, I still use Outlook to check email all the time. Outlook always reminds me to save it, and so on. It is very complicated, and I am always afraid that there are too many emails and there will be problems if I exceed a certain limit. In the past few years, mail has been lost several times, all because of exceeding the 2G limit. If Baidu does mailbox, it is necessary to provide mailbox without capacity limit. Tell me, what are the advantages and disadvantages of the email you use now?