Password doesn't save in support system settings

I cannot receive emails from the support system. It seems when I try and save the settings the password I enter does not save. - At least what does get saved has eight characters in it regardless of the length of the password I enter.

I can change any other field and it will save but the password always returns as eight bold dots even if I enter a password of ten characters in length. Consequently when I test the IMAP settings I always get the "failed to connect to the IMAP server" message.

Any ideas on what I might try?