To check the size of messages and mailboxes, view account information. Choose Mail > Preferences, click Accounts, select the account, click Advanced, then choose a different option from the pop-up menu below “Remove copy from server after retrieving a message”. Join Jess Stratton for an in-depth discussion in this video, Save attachments from a message, part of Outlook for Mac Essential Training (Office 365/Microsoft 365). Choose Mailbox > Erase Deleted Items, then choose to remove them from all accounts or a specific account.įor POP accounts, reduce the amount of time that copies of messages and attachments remain on the mail server before being removed. Messages you recently deleted are in the Bin mailbox but haven’t yet been removed from the mail server. Choose Message > Remove Attachments the message remains in the mailbox and Mail indicates attachments were manually removed.įor IMAP accounts, be sure to download the attachments first - attachments are deleted from the mail server and can’t be retrieved.Įmpty your Bin mailbox. Tip: To quickly identify large messages, choose View > Sort By, then choose Size.ĭelete attachments that you saved.