InMail costs $2 per message. Connection requests are free. The reply rates aren't even close.

This should be a simple decision. Belkins' 2025 study of 20 million LinkedIn outreach attempts found that InMail campaigns achieve a 6.38% overall response rate. Connection-based messenger campaigns hit 11.72%.

A real-world analysis by GrackerAI of over 500,000 LinkedIn interactions confirmed it: personalized connection-based sequences achieve a 39% positive reply rate versus 18-25% for InMails.

And InMails cost money. Sales Navigator includes 20-50 credits per month depending on your tier, with each additional InMail running roughly $2. Connection requests are unlimited (within weekly limits) and free.

So why does anyone still use InMail?

Because there's one scenario where the math flips - and understanding that scenario is the real insight.

When connection requests win (most of the time)

For the majority of LinkedIn outreach, connection requests outperform InMails on every metric.

The numbers

The core advantage of connection requests isn't just the higher reply rate. It's that accepting a connection creates a permanent relationship. Once connected, you can message them for free, see their posts in your feed, and engage with their content over time. InMail is a single interaction with no lasting connection.

Why connection requests perform better

Less friction. A connection request is a small commitment - "sure, I'll add this person." An InMail demands attention and a response. Psychologically, the bar is lower.

Social proof. Connection requests show mutual connections, shared groups, and your profile directly. InMails feel more like ads landing in a separate inbox.

Follow-up access. After connecting, your follow-up messages appear in their regular inbox, not the InMail folder that many people ignore. Alsona's 2025 benchmarks show first-degree connection messages achieve 16.86% response rates - far above InMail.

The warm-up advantage

When you add a profile visit before the connection request, reply rates after connecting jump to 11.87% (Belkins data). Try doing that with InMail - there's no equivalent warm-up mechanism. The profile visit creates a "I've seen this person before" effect that makes the connection request feel natural.

When InMail wins (the executive exception)

Senior executives - C-suite, VPs at large enterprises - have a different LinkedIn experience from the rest of us. They get dozens of connection requests daily. Their acceptance rate for unknown senders is often below 10%.

For this audience, InMail can outperform because:

It bypasses the connection gate. You don't need them to accept you first. The message arrives directly, regardless of whether they'd accept a connection request.

Executives check InMail differently. For people who receive constant connection requests, InMail stands out as a more intentional (and paid) form of outreach. Some executives perceive InMails as more serious precisely because they cost money.

The math changes at low acceptance rates. If connection request acceptance for your target audience is 8%, your effective outreach-to-reply rate is: 8% acceptance x 25% reply = 2% overall. InMail at 15-25% reply rate wins easily.

The InMail sweet spot

Use InMail when:

• Targeting C-suite or VP-level at Fortune 500 companies
• Connection request acceptance rate for your audience is below 15%
• You need to reach someone urgently (no time for the warm-up sequence)
• The prospect has "Open Profile" status (InMail is free to open profiles)

Check for Open Profiles first. LinkedIn lets you send free InMails to members with open profiles. For some audiences, 30-40% have this enabled, meaning you don't need credits at all.

The hybrid approach that outperforms both

The highest-performing teams in the GrackerAI and Belkins data don't choose one or the other. They use a sequence:

The sequence

1. Day 1: Visit the prospect's profile
2. Day 2-3: Engage with their content (like or comment)
3. Day 4: Send connection request (without note)
4. Wait 5-7 days
5. If accepted: Send personalized first message (this is where the 25-35% reply rates happen)
6. If not accepted after 7 days: Send InMail as fallback

This approach uses connection requests as the primary channel (free, higher reply rates, builds lasting relationship) and InMail only as a fallback for prospects who don't accept. You're spending InMail credits only on the hardest-to-reach prospects, not wasting them on people who would have accepted a free connection request.

Why the sequence works

The warm-up steps (profile visit, content engagement) increase both connection acceptance rates and InMail reply rates. A prospect who's seen your name twice before getting your InMail is more likely to respond than one who's never heard of you.

Tools like BeReach automate this exact sequence - profile visits, engagement tracking, connection requests, and follow-up messaging - all timed based on the prospect's behavior. The AI agent handles the warm-up and routing automatically, sending InMails only when connection requests don't get accepted.

The cost analysis most people skip

InMail pricing looks reasonable until you do the math at scale.

Scenario: 200 prospects per month

The hybrid approach costs 60% less than all-InMail while producing similar meeting volume. The connection-only approach is cheapest but has lower raw meeting numbers (though those connections remain in your network for future outreach - a long-term asset InMail doesn't provide).

Frequently asked questions