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Slack and email side by side, without losing your work

Keep chat and mail in view without letting them cover what you are working on: sizes, placement and settings that keep both handy but out of the way.

Guide · Updated 13 October 2026

Stack them: Slack and Mail in one column, one above the other, in a third of the screen, with your work in the other two thirds. Both stay in view and neither takes much width.

Making them fit narrow

  • In Slack, collapse the sidebar (⇧ ⌘ D) so messages get the width.
  • In Mail, use a layout without the preview pane, or hide the mailbox list.
  • Turn on compact density in apps that offer it.

Or out of view, one move away

If seeing new messages pulls you off task, keep them out of view instead, and check on your own schedule. See deep work on a Mac.

Doing it on the strip

In ClutterFreeMac, put Slack and Mail in one column as a stack (⌃ ⌥ ] stacks a window into the column beside it) and keep that column at the start of the strip. Glance left when you want them, work on the right when you don't.

Questions

How do I keep Slack and Mail open while I work on a Mac?

Put them one above the other in a narrow column at the side of the screen, so your main work keeps most of the width.