Attachment of incoming mail, not saving to computer

[Mahadeven]

The attachment in the incoming mail, could not be saved to the specified folder. It is not not saving anywhere in the computer. In the settings for saving I have given "ask everytime". How to resolve this issue.

[siffemcon]

Can you open i? Detach it? Does it also not save in Troubleshoot mode (https://support.mozilla.org/en-US/kb/safe-mode-thunderbird)?

[Mahadeven]

Yes I can open the attachment, but it is not saving by clicking the button "save" on the bottom right side of the mail.

[siffemcon]

You only answered one of my three questions.