Outlook.com, Microsoft 365 and Office 365

    Outlook appointment reminders your clients actually get

    Outlook is brilliant at reminding you about your day. It has no way to text 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.

    No add-in to install and no IT ticket on a personal account
    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 checked every hour

    No-shows

    -29% in 30 days

    Service businesses recover an average of 30% of lost appointments once reminders go out automatically.

    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

    Four steps, about ten minutes, and nothing to install in Outlook.

    1

    Publish your calendar link

    In Outlook on the web, open Settings > Calendar > Shared calendars and publish the calendar you book clients into. Outlook gives you a private, read-only link.

    2

    Paste it into Remindlo

    Add the link once under Integrations. Remindlo runs a test fetch, tells you how many appointments it can see, and keeps checking every hour from then on.

    3

    Keep phone numbers on the event

    Remindlo reads the client's mobile straight from the appointment. Anything without a number lands in Calendar Leads, so it is never quietly dropped.

    4

    Choose when reminders go out

    Most businesses send one three days ahead and one the day before. Pick a ready-made template or write your own, and the reminders send themselves.

    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.

    On a locked-down Microsoft 365 tenant?

    Some IT administrators switch calendar publishing off across the whole organisation. If the Publish option is missing from your settings, that is what happened, and you do not need to raise a ticket. Connect Outlook through Zapier instead: it reads the calendar through Microsoft Graph, which your work account already trusts, and triggers the same Remindlo reminders in near real time.

    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.

    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 each flavour of Outlook, which publish permission level to choose, what the hourly refresh means in practice, and how the Zapier fallback compares.

    Three ways to automate Outlook reminders

    Built-in reminders, the calendar link and Zapier, compared side by side.

    Step-by-step setup

    Publishing the link, connecting the feed and sending your first reminder.

    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.