535 Incorrect Authentication Data error in webmail

[Leo.Prince]

Hi,

This is an error we used to see many times around cpanel E-mail accounts. This is nothing but error due to incorrect mailbox permissions. You can resolve that by fixing the permissions. You have two ways front end and back end.

WHM

1) Log into WHM as root and click on "Email" section.

2) Select "Repair Mailbox permissions"

It will show you verbose output like this

This function will inspect mailbox ownership and permissions and attempt to
fix any issues that may exist.

4, Click "Proceed >>" button.

You can do the same from the server shell (back end)

Shell

1, Run the following script as root user.

Code: [Select]

/scripts/mailperm
This will resolve your issues. Thanks