Send recruiting emails without getting blacklisted
MailFlow sits between your team and your email infrastructure, intelligently throttling outbound messages so you never hit sending limits, land on restricted sender lists, or damage your domain reputation.
Sound familiar?
High-volume recruiting outreach on Microsoft 365 creates real problems that cost your team time and money.
Restricted Sender List
Microsoft flags your account for sending too many emails too fast. Your IT provider has to manually remove you — again.
Emails Going to Spam
Gmail, Yahoo, and Outlook spam filters start catching your messages because your sending patterns look like a spammer.
Disrupted Recruiting Pipeline
When your email goes down, your candidate pipeline stops. Open roles go unfilled longer, costing your clients and your revenue.
Everything you need to send at scale
MailFlow handles the hard parts of bulk email so your recruiters can focus on finding great candidates.
Microsoft 365 SSO
Sign in with your existing Microsoft credentials. No new passwords, no friction.
Smart Throttling
Emails are automatically spaced out across hours to stay under sending limits and look natural to spam filters.
Reputation Guard
Real-time domain reputation monitoring. MailFlow automatically slows or pauses sending if your reputation dips.
Mail Merge & Personalization
Use merge tags like {{first_name}} and {{company}} to personalize every message at scale.
Delivery Analytics
Track sends, deliveries, opens, clicks, bounces, and replies — all in one dashboard.
Subdomain Isolation
Outreach sends from a dedicated subdomain so your primary email reputation stays pristine.
See MailFlow in action
A clean, simple dashboard your recruiters will actually want to use. Click the tabs below to explore.
Dashboard
Active Campaigns
| Campaign | Sent | Delivered | Opened | Replied | Status |
|---|---|---|---|---|---|
| Senior Dev Roles — NYC | 1,847 | 1,823 | 892 | 134 | active |
| Contract PMs — Remote | 956 | 948 | 421 | 67 | active |
| Data Engineers — Austin | 2,100 | 2,100 | 1,050 | 189 | completed |
| UX Designers — SF Bay | 0 | 0 | 0 | 0 | scheduled |
How it works
Three simple steps from setup to safe, high-volume sending.
Sign in with Microsoft 365
Your team logs in with their existing Microsoft credentials via SSO. No IT setup required on their end.
Compose & upload recipients
Write your message with personalization tags, upload your recipient list, and hit send. MailFlow handles the rest.
MailFlow delivers safely
Messages are queued and sent through SendGrid at safe rates, using a dedicated subdomain to protect your primary email reputation.
Ready to stop getting blacklisted?
Let us set up MailFlow for your team. Your recruiters keep sending at the volume they need — without the headaches.
Setup takes less than a day. No changes to your existing Microsoft 365 environment.