How to Download Attachments using UiPath.MicrosoftOffice365.Activities.mail.GetMail

I am trying to write a bot that downloads attachments from a list of people using the UiPath.MicrosoftOffice365.Activities.mail.GetMail. However I am running into a lot of issues.
What to put in the “account” field? I put the account of a shared mailbox in this field, but it returned an error:
Also, what can I put in the “Filter” field if I want to filter by sender name?
Last but not the least, when the messages are read to the office365 array variable, how do I save each of the attachments in the array?

Thank you!