The qq mailbox of iphone6 mobile phone can only receive emails, but can't send emails. What is the reason?

The IMAP service of QQ is not turned on.

In order to ensure the security of users' mailboxes, QQ mailboxes are set with POP3/SMTP/IMAP switches. The default setting of the system is "OFF", so please "ON" when users need these functions.

The steps are as follows:

1. Find the account under the Settings menu.

2. In the account settings column, continue to look down and find these services as shown in the figure. You can see that they are closed by default, and you can open them by clicking the open option at the back.

3. To start these services, you need to set an independent login password.

4. The picture shows the setting interface. If you haven't set it before, this page will pop up automatically when you open these services. After the setting is successful, it needs to be verified once.

Extended data:

QQ mailbox is a mailbox product launched by Tencent in 2002, which provides users with safe, stable, fast and convenient e-mail service. It has provided free and value-added e-mail services to more than 654.38 billion mailbox users. QQ mail service is backed by high-speed telecom backbone network, and has a unique independent overseas mail export link, which is not affected by network bottlenecks at home and abroad and transmits mail on a global scale. Adopt a highly fault-tolerant internal server architecture to ensure that any failure will not affect the use of users, log in to the mailbox stably anytime and anywhere, and send and receive emails unimpeded.

The earliest QQ mailbox was only a tool for sending messages between QQ users in the domain, and it did not support sending emails to other domains. Later, the function of sending to other places was opened, and it can become a real mailbox. The free user capacity is 5M, and the maximum attachment is 4M, which is really pitiful. It is not bad to log in through the software bundled by QQ client. At that time, the capacity of Netease and Gmail had reached G.

References:

Baidu encyclopedia -QQ mailbox