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Press c to compose a new email. Slashy gives you a rich text editor with autocomplete recipients, formatting shortcuts, file attachments, and multi-account sending.
Slashy compose window with rich text editor and recipient chips
Pop-up compose window floating over the inbox view

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Full-Screen vs. Pop-Up Mode

Toggle with Cmd+Shift+P. Set your default in Settings > Account > Compose Mode.

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Recipients

Type a name or email in the To field — Slashy autocompletes from your contact history with fuzzy search. Press Tab to cycle between To, CC, and BCC. Drag and drop recipient chips between fields (To to CC, CC to BCC, etc.). Remove chips with the X button or Backspace. Multi-select recipient chips by clicking one, then Shift-clicking or Cmd-clicking others. Drag the whole selection to a different field, or remove them together with Backspace.

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From Selector

With multiple Gmail accounts connected, the From dropdown lets you choose which account to send from. Defaults to the account you’re currently viewing.
Full compose window showing rich text toolbar and recipient fields

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Rich Text Editor

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Attachments

1

File picker

Cmd+Shift+U opens the file picker
2

Drag and drop

Drag files onto the compose window
3

Paste images

Copy an image and paste directly into the editor body
Forgotten attachment detection — if your email mentions an attachment but none is attached, Slashy warns you before sending. You can add the file or send anyway.
Drag a folder onto the compose window and Slashy zips it automatically before attaching, so you don’t have to compress it yourself first.
Paste a URL into the compose body and Slashy expands it into a rich preview card with the page title, description, and thumbnail image, so recipients see context before they click. Click the preview to remove it and fall back to a plain link.

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AI Features While Composing

  • AI Autocomplete — ghost text appears as you type; press Tab to accept
  • AI Draft Reply — Cmd+Enter in a reply to generate a full draft
  • AI Edit — select text and invoke the AI editor to improve, shorten, or fix grammar
  • AI Email Rating — Cmd+P to score your draft with specific suggestions

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Sending

  • Send now: Cmd+Enter (with undo send delay)
  • Schedule send: Cmd+Shift+L to pick a future time
  • Send now: Cmd+Shift+Enter sends immediately, skipping the undo window
  • Send and Snooze: Cmd+Option+H (Mac) / Ctrl+Alt+H (Win/Linux) sends the email immediately and opens the snooze picker so you can set a follow-up reminder in the same step. Archive-on-send follows your Done-on-Send setting.
Undo send — after pressing Cmd+Enter, a toast appears with an undo option. Configure the delay window (5-30 seconds) in Settings > Account > Undo Send Delay.

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Sending Without a Connection

If you lose internet mid-send, Slashy doesn’t drop the email. It queues the exact message in a durable offline outbox and sends it automatically the moment your connection returns, no need to rewrite or resend. You can keep composing other emails while queued sends wait in the background. See Sync Issues if a queued email isn’t going out after you’re back online. Outgoing emails include a small “Sent with Slashy” footer by default. To remove it, go to Settings > Account > Compose & Reply and turn off the Sent with Slashy toggle.
Compose and Reply settings with Sent with Slashy toggle highlighted
Keyboard shortcuts cheatsheet — press Shift+? anytime to see every shortcut in Slashy, or visit the full cheatsheet.

Snippets & Templates

Reusable email templates with AI variables

Signatures

Configure and manage email signatures

Unsubscribe & Block

Block senders and bulk unsubscribe

Sync Issues

Troubleshoot email and calendar sync