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Slashy tracks open conversations across multiple inboxes by merging every connected Gmail and Outlook account into one All view, then filtering it with No Reply, Needs reply, and Assigned to me. Press Alt+0 to open All, and the open threads from every account sit in one date-ordered list with no manual notes.

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Connect every inbox

1

Add each account

Press Cmd+,, open Account, and under Connected Accounts click Connect, then choose Connect Gmail or Connect Outlook.
2

Open the All view

Press Alt+0. Each thread row shows a small badge for the inbox that received it. Hover the badge to see the full address.
3

Filter to what's open

Press Shift+R to show threads waiting on a reply to your last message. Press Shift+M to show only what’s assigned to you.
Settings showing connected accounts
You can also check several inboxes in the sidebar to view just those together. Unread counts combine into one badge per view.

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Mark what is still open

Press t on a thread to mark it Needs reply or Follow up. Both stay in your Reminders view (g h) until you finish the thread with e. Press p to set High, Medium, or Low priority. Press h for a reminder, so a thread returns to your inbox when you choose. Your importance labels are shared across every connected account, so one set of labels sorts all of your mail. Search also covers all accounts at once in the All view. See Find important emails.
Search results page with the scope indicator showing All Inboxes and results grouped by inbox

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Track team conversations

For shared work, assign each conversation with i. The Shared view lists team threads sent to you, and Assigned lists the ones you own. Teammates see a green check on the owner’s avatar once a thread is done. See How do I assign emails to teammates.

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What this looks like for a team

A founder has a company address, a personal address, and an Outlook account from a client. In the All view, the founder presses Shift+R and sees every thread across the three accounts that is still waiting on someone. Threads that need a teammate get assigned with i. At the end of the day the Reminders view (g h) shows the rest, grouped by due date.
Replies automatically use the account that received the email. Check the From field on new emails, which default to the account you last viewed.
Yes. Ask in chat (d a), for example “Did anyone from Acme email either of my accounts this week?”
No. Automations are set per account. Importance labels and block lists are shared.
No. Filters, Needs reply, Follow up, and reminders keep the list for you.

Manage multiple email accounts

Per-inbox settings and shared behavior.

Inbox views

Views, filters, and multi-inbox switching.

Tasks

Needs reply and Follow up.

Connecting a second account

Add Gmail or Outlook.