The error "user name or password error" is reported when the client uses the mailbox, because there is a problem with the client's settings. It is recommended to reset the password of the transceiver server on the client in such cases.
Tips: 1. For Apple devices, if you enter English in Chinese, a space will be automatically added to separate each English letter; In English status, the system will automatically spell English words and the default first letter is uppercase
2. How to modify the sending password on the iPhone/ipad/touch device? Open Settings - Mailbox - Select the corresponding mailbox - Click the sending server - Click Open - Modify Password - Finish in the upper right corner.
