Find verified business emails by industry and location.
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Bulk Email Sending
Send thousands of personalized emails through your own SMTP.
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AI Personalization
Every email uniquely personalized — never looks mass-sent.
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Unified Inbox
See all replies and sent emails in one place.
Send cold email campaigns through your own Gmail account
MailFlows is a cold email platform built for freelancers, marketers, and small agencies. Connect your own Gmail account, find and verify business contact emails, and run outreach campaigns — all from one dashboard, with no separate email server to set up.
Find contacts. Search for verified business emails by industry and location, or add your own contact list.
Send through your own Gmail. MailFlows never uses a shared sending server — every email goes out through the Gmail account you personally connect and authorize.
Track replies. See opens and replies to your campaigns in one unified inbox, without leaving MailFlows.
Replies arrive automatically as soon as they land in your inbox. Only shows replies to emails sent through MailFlows via your connected Gmail. Kept for 90 days, then auto-deleted.
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Select a reply to view and respond Not seeing what you expect? It's worth checking your inbox directly too.
⚡ Quick Send — Single Email
Send one email instantly without creating a campaign. Perfect for testing SMTP or reaching out to a single lead.
📋 Tips
✓ Add SMTP first in SMTP Settings
✓ Test your SMTP with Quick Send
✓ For bulk sending, use Campaigns
✓ Each send counts toward daily limit
✓ Check spam folder if not received
🖥️ Private SMTP Server
Run your own SMTP server for maximum deliverability, no daily limits, and full control over your sending infrastructure.
✓ Unlimited emails/day
✓ Full deliverability control
✓ Custom domain sending
✓ IP warming included
🚧 COMING SOON
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Connect Your Gmail
Click once to connect your Gmail account securely. No passwords stored — uses Google's official OAuth2. Your emails send through your own Gmail account.
📡 Connected Gmail Accounts
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No Gmail accounts connected yet. Click "Connect Gmail Account" above.
🔄 Auto Rotation
When one Gmail hits its daily limit (500 emails), the system automatically switches to the next connected account — keeping campaigns running 24/7.
✅ How Gmail Connect Works
1️⃣
Click Connect
You click the button once and Google login opens
2️⃣
Allow MailFlows
Grant permission to send emails on your behalf
3️⃣
Done Forever
MailFlows sends emails through your Gmail automatically
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100% Secure
We never see or store your Gmail password. Uses Google OAuth2 — same as "Sign in with Google"
🖥️ Private SMTP Server
Run your own SMTP server for maximum deliverability, no daily limits, and full control over your sending infrastructure.
✓ Unlimited emails/day✓ Full deliverability control✓ Custom domain sending✓ IP warming included