LinkedIn InMail: How It Works, Costs and Templates (2026)

LinkedIn InMail lets you message anyone on LinkedIn — even if you are not connected. It costs credits, and those credits cost real money.

This guide covers exactly how InMail works, what each plan actually costs per message, how reply rates benchmark against other channels, and 10 ready-to-send sales templates. It also covers when InMail is the wrong tool and a connection request or verified email will outperform it.

Overview

For B2B sales reps, SDRs, and founders who want to understand exactly what InMail costs, when to use it, and how to write messages that get replies.

Covers: InMail mechanics, credits and pricing by plan, response-rate data, 10 copy-ready templates for different outreach scenarios, and a decision framework for when a connection request or email outperforms InMail.

For the broader LinkedIn sales strategy, the LinkedIn B2B sales guide covers prospecting, content, signals, and multichannel sequences.

What Is LinkedIn InMail?

LinkedIn InMail is a paid direct message that reaches anyone on the platform — regardless of whether you are connected to them. It is LinkedIn's monetized alternative to cold email for professional outreach.

InMail is available only on paid LinkedIn plans: Premium Career, Premium Business, Sales Navigator, and Recruiter. Free accounts cannot send InMail.

How InMail Works

Each InMail message costs one credit from your monthly allotment. The recipient receives your message in their LinkedIn inbox, where it sits alongside messages from their 1st-degree connections — but visually flagged as an InMail.

If the recipient replies within 90 days, LinkedIn refunds one credit to your account. If they do not reply, the credit is spent. Unused credits accumulate up to a plan-specific cap, then expire.

Open Profile: The Free InMail Exception

Any LinkedIn Premium member can enable "Open Profile," which allows anyone to message them for free — no InMail credit required. Before spending a credit, check whether a prospect has an Open Profile badge on their profile.

Free accounts can also always message their 1st-degree connections. The InMail credit system only applies to 2nd and 3rd-degree connections and beyond.

InMail vs Regular Messages: The Real Difference

Regular LinkedIn messages go to 1st-degree connections only. They are free and unlimited. InMail reaches anyone.

The key advantage of InMail is access. The tradeoff is cost and volume constraints. Most sales workflows use InMail selectively — for high-priority prospects where standard outreach channels have not worked.

InMail Credits and Costs by Plan (2026)

LinkedIn InMail credits are tied to your subscription. The monthly credit allotment, rollover cap, and effective cost per message vary significantly by plan.

Annual billing reduces these costs by roughly 25%. Sales Navigator Core on annual billing drops to about $89.99/mo — bringing the effective InMail cost to $1.80.

Credit Refund Rules

LinkedIn refunds one credit for each InMail that receives a reply within 90 days. This means a well-targeted campaign with a 20% reply rate effectively reduces your cost per sent message — but you are still paying for the 80% that go unanswered.

Credits cannot be purchased on Premium Career or Business plans. Recruiter Lite allows purchasing additional packs of 10 credits at up to $21 per credit — significantly more than the subscription-based cost.

Credit Expiry

Unused credits expire after 90 days. Cancelling your subscription drops your balance to zero immediately. Plan your usage so credits do not go to waste — front-load InMail campaigns when your balance is full.

InMail Response Rate Benchmarks

LinkedIn claims InMail gets a 3x higher response rate than cold email — per LinkedIn's own sales solutions data. That figure is self-reported and uses an unspecified cold-email baseline, so treat it as directional rather than definitive.

Third-party benchmarks are more conservative:

What Actually Moves Reply Rates

Three factors consistently drive higher InMail reply rates:

• Message length: Under 400 characters gets a 22% higher response rate, according to LinkedIn internal data. Long InMails get skimmed and ignored.
• Specific subject line: "Quick question about [company]" outperforms generic subject lines like "Connecting on LinkedIn." Reference something real.
• Timing: InMails sent on weekdays (Tuesday–Thursday) between 8am–10am local time for the recipient get higher open and reply rates than weekend or late-evening sends.

For deeper guidance on what makes outreach land across channels, the guide to personalizing sales emails covers the personalization principles that apply to InMail equally.

10 LinkedIn InMail Templates for Sales

Each template below is under 400 characters in the body and follows the same principle: reference something specific, make one clear ask, no pitch.

Template 1: Cold Outreach — Role Relevance

Subject: Quick question about [Company]'s outbound

Body: Hi [Name], saw you're building the sales team at [Company]. We help GTM teams like yours find verified contact data without the usual manual enrichment work. Worth a 15-minute chat? Happy to share what we're seeing from similar teams.

Template 2: Job Change Trigger

Subject: Congrats on the new role at [Company]

Body: Hi [Name], noticed you recently joined [Company] as [Title]. New leaders often reassess their GTM stack early on. If you're evaluating data enrichment or prospecting tools, I'd love to share what's working for teams in your position. 15 minutes?

Template 3: Mutual Connection

Subject: [Mutual Name] suggested I reach out

Body: Hi [Name], [Mutual Name] thought we should connect — apparently we're solving similar problems for GTM teams. I'd love to get your take on how you're approaching [specific challenge]. No pitch, just a genuine conversation.

Template 4: Content Engagement

Subject: Loved your post on [topic]

Body: Hi [Name], your post on [specific topic] last week was spot on — especially the point about [specific detail]. We've seen the same pattern with our customers. Would love to swap notes. Open to a quick call this week?

Template 5: Company Growth Signal

Subject: [Company] scaling fast — quick thought

Body: Hi [Name], noticed [Company] has added [X] new SDR roles in the last 30 days. When teams scale outbound quickly, data quality and enrichment usually become the first bottleneck. Happy to share what works. Worth 15 minutes?

Template 6: Shared Industry Event

Subject: Good to 'meet' at [Event Name]

Body: Hi [Name], saw you were attending [Event]. I'm speaking on [topic] and thought your work on [area] was directly relevant. Would love to connect before or after — or happy to continue the conversation here.

Template 7: Competitor Switching Signal

Subject: Switching from [Competitor]?

Body: Hi [Name], a few teams that were using [Competitor] have reached out to us recently — mostly around [common pain point]. If that's something you're evaluating, I can show you exactly how we compare. Want to take 15 minutes?

Template 8: Warm Re-Engage

Subject: Circling back — things have changed

Body: Hi [Name], we spoke [timeframe] ago but the timing wasn't right. We've since launched [new feature or improvement]. Thought it might be relevant given what you're building now. Worth a quick revisit?

Template 9: Research-Led Opener

Subject: Noticed [Company]'s tech stack

Body: Hi [Name], saw [Company] is running [tool or stack detail]. We work with teams on that stack to improve enrichment and outreach efficiency — and the integration is straightforward. Happy to walk you through it if helpful.

Template 10: Direct Ask (Senior Buyers)

Subject: 10 minutes — data enrichment for [Company]

Body: Hi [Name], I'll be direct. We help companies like [Peer Company] cut their contact enrichment cost by [X]% using a waterfall approach across 50+ providers. Worth 10 minutes to see if the same applies to [Company]?

For email versions of similar openers, the personalized sales email templates guide has ready-to-send copy for every stage of the sales cycle.

When to Skip InMail: Connection Requests and Email

InMail is not always the best choice. Three scenarios where another channel outperforms it:

Use a Connection Request Instead

A personalized connection request costs zero credits and gets accepted 25–40% of the time. Once accepted, you can message for free.

Connection requests work better when:

• The prospect is active on LinkedIn (posts regularly, comments on others' content)
• You have a genuine reference point — a shared connection, a post they wrote, a company event
• You are comfortable waiting 48–72 hours for acceptance before following up
• The prospect is mid-market (director/VP level), where acceptance rates are higher than at C-suite

The key is the note. A connection request with "I'd like to add you to my network" gets a 10% acceptance rate. A note referencing a specific post or shared context gets 35–45%.

Use Email Instead

Email reaches a prospect's primary inbox — not their LinkedIn inbox, which many executives check infrequently. For senior buyers (C-suite, VP level), email often outperforms InMail precisely because it lands where they work.

Email also removes the platform dependency. An InMail requires the prospect to be a LinkedIn user who checks their notifications. A well-written cold email to a verified work address does not.

The challenge is finding the right email address. Tools like SyncGTM waterfall-enrich contacts with verified work emails from 50+ providers — giving you a direct inbox reach for a fraction of the InMail credit cost. For teams doing volume outreach, this math changes the decision entirely.

See the cold email guide for writing, personalizing, and sending at scale.

The Decision Framework

Use this to pick the right channel for each prospect:

InMail Best Practices That Improve Reply Rates

Five practices that consistently separate 20%+ reply rate senders from those stuck at 5%:

Keep It Under 400 Characters

LinkedIn's data is unambiguous: shorter InMails get more replies. Write your message, then cut it in half. The goal is not to explain your full value proposition — it is to earn a reply. One specific ask, one specific reason to reply.

Write a Subject Line That Gets Opened

The subject line is your headline. "Quick question about [Company]" beats "Introducing [Your Company]." Reference the prospect's company, title, or a specific trigger (job change, funding, hiring). Avoid clickbait — recipients can see who sent it and will remember if the subject was misleading.

Personalize With a Specific Detail

Generic InMails get deleted. One specific observation — a post they wrote, a company milestone, a technology they use — shows you did the work. Personalization does not require hours of research: one relevant fact in the opening line is enough.

Make One Ask, Not Three

InMails that ask for a call, request a referral, and ask for feedback in the same message get ignored. Pick one call to action. "Worth 15 minutes?" or "Open to connecting on this?" — not both.

Follow Up Once

If an InMail goes unread for 5–7 days, one follow-up is acceptable. Send a brief bump — "Wanted to make sure this didn't get buried" — or a slightly different angle. More than one follow-up on InMail is intrusive and damages your sender reputation on the platform.

For a deeper look at how InMail fits into a multichannel sequence, the SDR LinkedIn guide covers sequencing structures that combine InMail with email and phone.

Finding Emails Instead of Burning InMail Credits

InMail credits are a scarce resource. At $2.40–$8.00 per message, a team sending 200 InMails per month spends $480–$1,600 on outreach before a single call is booked.

A verified work email costs a fraction of that — and reaches a primary inbox rather than a LinkedIn inbox that may only get checked a few times a week.

SyncGTM enriches LinkedIn contacts with verified work emails using a waterfall across 50+ providers — Apollo, Hunter, Clearbit, Prospeo, and more. The enrichment runs in sequence until a valid, deliverable email is found.

For most ICPs, enrichment hit rates exceed 80%. The cost per enriched contact is a small fraction of a single InMail credit.

The Practical Workflow

• Export your LinkedIn Sales Navigator search results or prospect list
• Run enrichment in SyncGTM to find verified work emails
• Contacts with valid emails go to email sequences
• Contacts without verified emails — or C-suite targets — go to InMail
• Reserve InMail credits for prospects where no email is available

This approach cuts InMail spend by 60–70% for most teams while increasing overall outreach volume. See SyncGTM pricing for enrichment plan details.

For SDR teams using LinkedIn as their primary prospecting surface, the LinkedIn outreach automation guide covers how to combine enrichment, connection requests, and sequences into a single repeatable workflow.

FAQ

Pricing and credit data verified against LinkedIn plan pages, October 2026. Verify current figures at linkedin.com/premium/products.