Connection limits are the speed bumps of LinkedIn outreach. You can only send about 100-200 connection requests per week per account safely. But there is a lane on the highway with no speed limits: Open InMails.
"Open Profiles" on LinkedIn allow anyone to message them for free, without spending an InMail credit and without needing to be connected. This is the Holy Grail of high-volume outreach. If you can identify these users, you can message thousands of them.
In this guide, we discuss "InMail Farming"—the strategy of using a fleet of rented accounts to scrape, identify, and message Open Profiles at scale, completely bypassing standard connection limits.
What is an Open Profile?
LinkedIn Premium (Gold) users have the option to set their profile to "Open." This means anyone can send them a mesasge. For recruiters and sales pros, this is a feature, not a bug—they want to be reachable.
The Opportunity: About 30-40% of standard prospects in tech, sales, and executive roles have Open Profiles. If you have a list of 10,000 leads, ~3,500 of them might be reachable via free InMail.
The Farming Workflow
How do we exploit this with a multi-account fleet?
- Harvesting: Use one designated account (the "Scout") to scrape search results from Sales Navigator.
- Filtering: Run the list through a tool (like Evaboot or specialized scripts) to check the `is_open_profile` flag.
- Distribution: Take the list of Open Profiles and split them among your 50 rented accounts.
- Messaging: Send "Free InMails" instead of Connection Requests.
"InMail Farming turns a scarcity game into an abundance game. You stop worrying about 'acceptance rates' and start worrying about 'reply capacity'." — James Smith, Operations Director at Linkediz
Why Rented Accounts Are Essential for This
Can't I just do this with my main account? Yes, but volume is the issue. Even with free InMails, LinkedIn monitors "commercial use limits." If you send 500 InMails a day from one profile, you will get flagged for spamming.
By spreading the load across 10 rented accounts, you can send 50 InMails each. That's 500 messages a day, 2,500 a week—totally under the radar. This is "Load Balancing" applied to outreach.
Campaign Performance: Connection vs. InMail
| Metric | Connection Request Campaign | Open InMail Campaign |
|---|---|---|
| Daily Volume Limit | ~20-30 per account | ~50-80 per account |
| Cost | Free | Free (for Open Profiles) |
| Acceptance Barrier | Must accept request first | Direct to Inbox |
| Subject Line | None (usually) | Required (Higher Open Rate) |
Scale Your Volume
Deploy a fleet of InMail Farmers today. 10 accounts = 20,000 InMails per month.
Start FarmingWriting the Perfect InMail
InMail is different from a connection note. You have a Subject Line. This is your biggest leverage point.
- Bad Subject: "Hello" or "Partnership opportunity"
- Good Subject: "Regarding {Company Name}'s sales team" or "Question about your Q3 hiring"
Because the message lands in the "Focused" inbox (often), and looks premium, prospects treat it with more respect than a cold DM... provided the copy is relevant.
Do I need Sales Navigator to send InMails?
To send Paid InMails, yes. But to send Free InMails to Open Profiles, you often just need a standard account, though Sales Nav makes finding them much easier.
Does this burn the rented accounts?
It's actually safer than connection requests. LinkedIn encourages InMail use. As long as your "Reply Rate" stays above 10-15%, you are safe. If you get reported as spam repeatedly, the account will be restricted.
Conclusion
InMail Farming is the secret weapon of high-volume agencies. It allows you to bypass the strict "100 connections/week" jail that limits your competitors.
By combining the architectural scale of rented accounts with the tactical advantage of Open Profiles, you can achieve reach metrics that simply aren't possible with a single profile strategy.