Personal and work accounts

    Text appointment reminders from Outlook and Office 365

    Outlook and Office 365 are brilliant at reminding you about your day. Neither can send a text message to your clients about theirs. Remindlo reads your Outlook calendar and sends the SMS and email reminders for you, so fewer people forget and fewer slots go empty.

    Connect Outlook for freeSee the setup guide
    Connect through Microsoft sign-in; no add-in to install
    Read-only access, so Remindlo never writes to your calendar
    Free plan with 10 SMS a month, so you can test it on real clients

    Outlook appointment 14:30

    SMS reminder sent

    24h before the visit
    GDPR + automatic STOP opt-out
    Calendar synced in the background

    Attendance with a text reminder

    78.6%, against 67.8%

    Pooled across eight randomised trials of healthcare appointments. Where our figures come from

    What Outlook does, and what it leaves to you

    Outlook already knows when every appointment is and who it is with. The gap is everything that has to reach the client.

    Without Remindlo

    Outlook on its own

    Pop-up and mobile reminders that only you see
    Invite emails to clients who accept them into a calendar app
    No SMS to clients, on any plan
    Nothing reaches the client who never opened the invite
    No way to chase a client whose next service is due
    With Remindlo

    Outlook + Remindlo

    SMS and email reminders sent to the client automatically
    Reminders land on the phone, whatever calendar the client uses
    Cancellations and reschedules update the reminder on their own
    Recurring services chased months later, before the client drifts
    One dashboard showing what was sent, delivered and recovered
    Outlook, Microsoft 365 and other calendars connected to automatic SMS reminders in Remindlo

    Fewer no-shows

    A text lands where your client actually looks. Reminders reach them at the moment they decide whether to turn up, which is exactly when a forgotten slot turns into lost revenue.

    Zero extra admin

    You carry on booking in Outlook exactly as you do today. Remindlo picks the appointments up on its own. No double entry, no new system for your team to learn.

    Slots you can resell

    Send the first reminder a few days out and clients who cannot make it tell you early, while there is still time to fill the gap with someone on the waiting list.

    How the Outlook integration works

    Connect from the Remindlo dashboard, then test your first reminder.

    1

    Connect Microsoft Account

    In Remindlo, open Integrations and choose Connect Microsoft Account. Sign in to the account that holds your appointments and accept the requested permissions.

    2

    Check the connected calendar

    Check that the connection shows Connected. Remindlo reads your default Microsoft calendar in the background, whether you edit it on the web, Windows, Mac or mobile.

    3

    Keep phone numbers on the event

    SMS needs a usable mobile number in the event description or title, and the location field is checked too. A guest email can create an email-only contact, but cannot receive an SMS. Check the name and number on a test contact.

    4

    Choose when reminders go out

    Start a reminder campaign and enable Auto-enrol new contacts. Add a test event with your own number and check its scheduled message before using the setup for clients.

    Read the full setup guide
    Microsoft authorisation screen requesting permission to connect Outlook Calendar to Remindlo
    Authorise Remindlo after choosing Connect Microsoft Account. Select the image to view it at full size.

    What you get once it is connected

    SMS and email reminders without a single manual import.
    Cancellations and reschedules handled on the next sync.
    A client list that builds itself out of your calendar.
    Personalised messages with names, dates and times filled in.
    Delivery reporting, so you can see what the reminders recovered.
    Start free with Outlook

    On a locked-down Microsoft 365 tenant?

    The direct Microsoft connection does not require calendar publishing. Your organisation may still require an administrator to approve app access. If Microsoft asks for approval, ask your IT team to review the permissions. ICS is an alternative when publishing is allowed; Zapier is useful for custom workflows and may also need approval.

    See the Zapier route

    The reminder your calendar cannot send

    Appointment reminders protect next week's revenue. The bigger win is the appointment that was never booked: the boiler service due in twelve months, the MOT due next spring, the check-up six months out. That client is not in your calendar, so Outlook has nothing to remind anyone about. Remindlo keeps the service interval against each client and gets in touch before they drift to whoever advertises first.

    How reactivation works

    Who this is for

    Outlook is the calendar most professional services live in. If your week is a column of client appointments in Microsoft 365, this is built for you.

    accountants, solicitors and consultants billing by the hour
    clinics and allied health practices on work accounts
    surveyors, engineers and mobile trades
    garages and workshops booking recurring services
    training providers, tutors and coaches
    any team whose bookings already sit in Outlook

    Want the technical detail first?

    The full walkthrough covers direct Microsoft sign-in, the default calendar, phone numbers and campaign setup, plus ICS and Zapier alternatives.

    Choose your Outlook connection

    Direct Microsoft sync, the optional ICS feed and custom Zapier workflows, compared side by side.

    Step-by-step setup

    Connecting your Microsoft account and checking your first scheduled reminder.

    Read the full guideGo to the help centre

    On Apple instead? See the iCloud and Apple Calendar integration.

    FAQ: Outlook + Remindlo

    Common questions about SMS reminders for Outlook and Office 365.

    Put your Outlook calendar to work

    Connect it in minutes, send your first ten reminders free, and measure the no-show rate before and after.

    Connect Outlook for freeTalk to us