IMPORTANT: An "Incorrect password" error in your e-mail program
If you are receiving an "Incorrect password" error in the e-mail program on your local device (computer, phone, tablet, etc.), but you are sure that you have entered the correct password, please check your e-mail username as well.
Also, please make sure that there are no whitespaces entered before or after the password in your e-mail program.
Full instructions on configuring the most popular email programs can be found in this section of the FAQ.