How to dictate in Outlook — Microsoft's built-in Dictate vs. FluidVox for cleaner, faster email

Start a new email or reply, click into the message body, open the Message tab, and select Dictate — it works the same way in new Outlook for Windows, classic Outlook, Outlook for Mac, and Outlook on the web. You need to be signed in to a Microsoft 365 subscription on a mic-enabled device with an internet connection; the button won't do anything without that. Once it turns on and starts listening, just start talking.

In Outlook specifically, use the built-in Dictate button described above, or press Windows key + H anywhere on Windows to open the OS-level voice typing tool and speak into the message body, subject, or recipient fields. FluidVox works the same way across every email client — Outlook, Gmail, Apple Mail — by holding one hotkey (Fn on Mac, Ctrl+Shift+Space on Windows) rather than hunting for a mic icon in each app's ribbon.

Dictate converts your speech into plain text in real time as you talk, and understands spoken punctuation commands like "period," "comma," and "question mark." It does not clean up filler words, restructure rambling sentences into a professional email, or apply any tone or formatting — what you say is close to what you get. FluidVox instead runs your speech through a professional style automatically when it detects Outlook, so "hey so basically I wanted to follow up on" becomes a properly greeted, punctuated business email.

Not directly — Microsoft's own documentation notes that the Dictate button does not work inside the "Draft with Copilot" prompt dialog, so you have to type your Copilot prompt by hand. A common workaround is dictating the email body first with Dictate, then using Copilot's coaching features to refine tone afterward. FluidVox injects text into whatever field has keyboard focus rather than hooking into one specific button, so it isn't tied to that particular restriction.

Dictate ships built into Outlook for Microsoft 365 — there's no separate download or add-in to install. It only requires an active Microsoft 365 subscription (it's a subscriber-only feature, not available on one-time-purchase Outlook 2021/2024 licenses), a working microphone, and an internet connection, since your voice is sent to Microsoft's servers to be transcribed.

Not reliably. The Outlook app for iPhone and Android doesn't consistently expose the same Microsoft 365 Dictate button found on desktop and web, so most people fall back to their phone's own keyboard microphone to dictate into Outlook Mobile. FluidVox's iPhone app includes a dedicated custom keyboard, so you get the same hold-to-talk dictation and automatic formatting inside the Outlook iOS app that you'd get on your Mac or PC.

You can, but through your iPhone's system dictation (tap the mic key on the keyboard) rather than a dedicated Outlook Dictate button, since Microsoft's Dictate feature is primarily built for desktop and web. FluidVox's iPhone keyboard is built specifically to fill that gap — it's available inside Outlook for iOS just like any other app, with the same personal dictionary and styles as the desktop app.

Yes. Outlook for Mac supports Dictate the same way desktop Windows does: click into the message body, go to Message > Dictate, and speak while signed in to Microsoft 365. FluidVox also runs natively on macOS and works the same way in Outlook for Mac as it does in every other Mac app, including the new Outlook and classic Outlook.

The most common causes are not being signed in to an active Microsoft 365 subscription, no internet connection (Dictate transcribes through Microsoft's servers, so it won't work offline), a muted or permission-blocked microphone, or another app already holding exclusive access to the mic. Outlook 2021/2024 perpetual-license users also won't see Dictate at all, since it's Microsoft 365-only. FluidVox's Local plan sidesteps the connectivity dependency entirely — it transcribes on-device and keeps working even with no internet.

Yes. Dictate is part of Microsoft 365 more broadly and appears with the same Message/Home-tab style button in Word, PowerPoint, OneNote, and Excel, not just Outlook. FluidVox covers the same ground app-agnostically — once it's running, the same hotkey dictates into Excel cells, Word documents, or any other app on your Mac or PC.

Microsoft Dictate is the speech-to-text button built into Microsoft 365 apps (Word, Outlook, PowerPoint, OneNote, Excel) that converts your voice into text using Microsoft's cloud speech service. It's separate from Windows' own OS-level voice typing (Windows key + H) and from Microsoft 365 Copilot's voice features, though all three overlap in what they let you do.

No — Dictate isn't a standalone app you install; it's a button built into each Microsoft 365 app (Outlook, Word, PowerPoint, OneNote, Excel). If you want a standalone dictation app that works everywhere, not just inside Microsoft 365, that's what FluidVox is: install it once and it adds voice typing to Outlook, your browser, Slack, and every other app on your Mac, Windows PC, or iPhone.

FluidVox detects Outlook and applies its professional style automatically — proper greetings, sign-offs, and business phrasing without you asking for them. You can also add company-specific terms, acronyms, and product names to your personal dictionary so they're always transcribed correctly instead of getting mangled or autocorrected.

Yes. FluidVox works in any standard text field, including meeting invite descriptions, calendar event notes, and quick meeting replies, not just the mail compose window. Outlook's own Dictate button covers calendar text fields too, though it's subject to the same Microsoft 365 subscription and internet requirements described above.