The 100Hires Outlook integration connects your Microsoft 365 account so you email candidates and schedule interviews without leaving the ATS. Send a message from a candidate profile and it goes out from your real Outlook address, and the reply lands in both your inbox and the candidate record.
Connect the Microsoft 365 Calendar on top of that and you book interviews on slots that are genuinely free, with invites that reach everyone involved. This page covers what syncs, what you need to turn it on, and how the email and calendar halves work day to day.
Your candidate email and your hiring record never agree
Most teams run hiring out of two places that do not talk to each other. Candidate threads pile up in Outlook folders only one person can see, so a teammate covering the role starts blind, and it is easy to message the same person twice. Scheduling turns into a round of proposed times and reschedules, and the strongest candidates accept another offer while you wait.
The fix is not another inbox. It is pulling Outlook email and your Microsoft 365 calendar into the same place you already track candidates, so the message history and the interview both sit on the record. Here is how that works in 100Hires.
What connects, what syncs, and what you need
Running candidate email and interview scheduling through Outlook takes two connections, both set up in Settings then Integrations. Here is the full picture, including the one requirement that applies to every row.
What you need to connect Outlook, and what 100Hires can see
The Outlook integration works with a Microsoft 365 work account, the email address on your company domain, not a personal Outlook.com or Hotmail address. Connecting email takes a couple of clicks in Settings then Integrations and does not need an administrator to install anything first. The Microsoft 365 Calendar connects the same way with its own authorization.
You choose which mailbox and calendar to connect, 100Hires syncs the candidate emails and interview events tied to your hiring, and you can disconnect at any time. Prefer Google? The same two-way email and calendar sync works with Gmail and Google Workspace, so a mixed team is not forced onto one provider.
100Hires with Outlook versus Outlook on its own
One honest boundary: the Outlook integration needs a Microsoft 365 work account, and 100Hires runs the hiring side, not your mailbox storage or inbox rules. For the scheduling half on its own, see how interview scheduling software works in 100Hires, or read about reaching passive candidates with candidate outreach at scale.