Integrations · Microsoft 365
Outbound From Outlook, Without Leaving Microsoft 365.
If your company runs on Outlook, you don't need a second email setup for outreach. Connect your Microsoft 365 mailbox and approved RevFirst campaigns send from it.
Settings · Sending mailboxes
Connect where your emails come from
Google Workspace
maya@ledgerly.comConnected
Microsoft 365
Outlook and Exchange OnlineConnect →
Replies arrive in the connected inbox.
Can RevFirst Send From Microsoft 365?
Yes. Microsoft 365 is a native mailbox connection in RevFirst, alongside Google Workspace. Connect an Outlook mailbox in Settings and approve a campaign, and the emails go out from your address with replies coming back to Outlook.
For Outlook teams
Your Outreach Lives Where Your Team Already Works.
Many B2B teams, especially those selling to larger companies, run everything through Microsoft 365. RevFirst fits into that instead of asking you to set up something new. Prospects see a normal email from a colleague, and your team sees replies in the same Outlook inbox.
- Emails from your own name and domain
- Replies in Outlook, next to your other threads
- Plain-text emails, not designed newsletters
- Approval required before anything sends
Sending rules
From your own mailboxes
Mailboxmaya@ledgerly.com · Google Workspace
New contacts per day30 per mailbox
Sending windowMon–Fri, 08:00–17:00 (their time)
FormatPlain text
When someone repliesSequence stops
Setup
Connect an Outlook Mailbox.
Most teams do this right before their first campaign launches.
- 01
Go to Settings
Choose to connect a sending mailbox and pick Microsoft 365.
- 02
Sign in with Microsoft
Use the work account you want campaigns to send from.
- 03
Loop in IT if asked
Some organizations require an administrator to approve new apps before they can connect.
- 04
Approve your campaign
Sending starts only after the campaign is approved and goes Live.
A Note for IT and Security Teams.
RevFirst connects to the mailbox you choose so it can send approved campaigns from it. It doesn't send anything on its own: every campaign is submitted and approved first. If your organization reviews new apps, share this page with your administrator.
What Changes When You Connect, and What Doesn't.
| With RevFirst connected | |
|---|---|
| Your email address | Unchanged. Campaigns send from it. |
| Where replies go | Your Outlook inbox, as usual |
| When emails send | Weekdays in the recipient's business hours (sample: 08:00–17:00) |
| How many go out | A daily cap per mailbox (sample: 30 new contacts) |
| After a reply | That contact's sequence stops |
Why Not Use a Separate Sending Tool?
Some outbound setups ask you to buy new domains and run outreach from mailboxes nobody on your team reads. Replies get missed, prospects can't tell who they're talking to, and sales ends up checking two inboxes.
Sending from your own Microsoft 365 mailbox avoids that. The person who replies reaches the person whose name is on the email.
The thread sits in Outlook with the rest of your work, so you can forward it to a colleague or log it in your CRM straight away.
Customer story
How Refold.ai Turned Bursts of Demand Into a Steady Enterprise Pipeline
12
demos with qualified enterprise buyers
2 a month
qualified enterprise conversations, sustained
$600K
pipeline generated
“Two qualified enterprise conversations a month, consistently. We were never short on ads — we were short on consistency. RevFirst rebuilt the entire setup: ICP, messaging, pipeline.”
Anuj VermaFounder's Office (GTM Lead), Refold.aiRead the Refold.ai story →
Common Questions
Does RevFirst work with Outlook?
Yes. You connect Outlook mailboxes on Microsoft 365 in Settings, and approved campaigns send from them.
Do I need my IT team to connect a mailbox?
Sometimes. If your organization requires administrator approval for new apps, IT may need to approve the connection first.
Will replies show up in Outlook?
Yes. Replies go to the connected mailbox like any other email, and the sequence stops for that contact.
Can I use Microsoft 365 and Google Workspace together?
RevFirst supports both providers. Pick the one your company email runs on.
How many emails can I send?
Each mailbox follows sending rules, for example a sample cap of 30 new contacts per day. Your plan also sets a daily email limit: up to 50 a day on Free Forever, 500 on Growth ($499/month) and 1,000 on Scale ($999/month).
Does connecting my mailbox start sending?
No. Nothing sends until you approve a campaign.
Free Forever plan
Keep Outlook. Add Outbound.
Start with your website and connect Microsoft 365 when your first campaign is ready to approve.