How to stop Mac Mail from automatically downloading (and storing locally) attachments?

A while back I had a problem where Mac Mail was wasting many gigabytes of space on my hard drive because it was storing a local copy of every message ever received in all my accounts. At the time I was dealing with this issue there was no way to limit how much is mail stored locally (maybe that's changed?). Actually I don't mind keeping a text copy of all my mail locally, it helps for search, for example. But I don't want a local copy of every attachment ever received. There was a setting to stop Mail from downloading all attachments automatically, I'd have to click on the attachment and then it would download.


I don't remember where I found this setting though, can anyone help?


Thanks.

MacBook Pro, macOS Sierra (10.12.3), Retina 15"

Posted on Mar 17, 2017 12:09 PM

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5 replies

Mar 18, 2017 3:35 AM in response to brsm1990

Some more info here,

  • "Download Attachments" option is available for IMAP account (including iCloud), but not for POP account.
  • For POP account, [Mailbox Behavior] tab for the account has "Erase deleted messages" option instead.
  • As related item, General tab has "Remove unedited downloads" option, which can be "Never", "When Mail Quits", or "After Message is Deleted"

Mar 18, 2017 3:36 AM in response to To_Mi

To_Mi wrote:


As related item, General tab has "Remove unedited downloads" option, which can be "Never", "When Mail Quits", or "After Message is Deleted"


I assume (and hope) this means just downloads I opened that are stored in a temp folder somewhere, not downloads that I have specifically opened and saved under /user/login/documents/Office/somefile.docx for example?

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How to stop Mac Mail from automatically downloading (and storing locally) attachments?

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