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LinkedIn InMail Tips

How can I maximize my reply rate for LinkedIn InMails?

Written by Fabian Matthies

LinkedIn InMail works differently from regular DMs. Here are some InMail-specific tips to maximize your reply rate:

1. Optimize the Subject Line

  • People decide whether to open based on the subject line, so make it intriguing but relevant.
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    • Good Examples:

      • "Quick question, [First Name]" (Casual, feels personal)

      • "[Mutual connection] mentioned you might find this useful" (Leverages social proof)

      • "Saw your post on [Topic]—loved your insights!" (Personalized & engaging)
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    • Bad Examples:

      • "Great opportunity for you!" (Too salesy)

      • "Introducing our solution" (Feels like a pitch)

2. Keep the Message Under 150 Words

  • Shorter messages get higher replies. People won’t read long pitches, so get to the point fast.
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    • Best Structure:

      • Personalized Opener (mention something about them)

      • Problem Statement (relate it to their role)

      • Value Proposition (how you help)

      • Soft Call-to-Action (invite a response, not a hard pitch)

3. Personalization is Key (No Copy-Paste Spam!)

  • Mention their company, role, or recent LinkedIn activity.

  • Reference a mutual connection if possible.

  • Relate your message to something they care about (their industry, pain point, recent post).
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    • Example:
      "Hey [Name], saw your post on [topic]—really insightful! Curious, how is your team approaching [pain point]? We've worked with [similar company] to solve this in [X] way. Worth a quick chat?"
      ​

    • Bad Example:
      "Hey [Name], I’m reaching out because we offer [solution]. Let’s book a call!" (Too salesy, no personalization)

4. Soft CTA (Don’t Go Straight for the Call)

  • Avoid "Let’s book a call this week" in your first message—it feels pushy.
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    • Instead, try:

      • “Would love to hear your thoughts—what’s your take on this?”

      • “Curious if this is something your team is looking at?”

5. The Follow-Up Message is Crucial

  • If they don’t reply, send a light follow-up in 5-7 days.
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    • Example:
      "Hey [Name], just wanted to follow up on my last message—would love to hear your take when you have a moment!"

    • Pro Tip: Follow-ups double your response rate!

6. Leverage LinkedIn’s Free InMail (If Possible!)

  • If you send InMail to open profiles, it doesn’t count against your quota—so target users with "Open Profile" enabled!

7. Avoid Too Many Links

  • Too many links = spammy. If needed, include one link max (and make sure it’s relevant).

8. A/B Test Different Approaches

  • Try variations like:

    • Test Subject line

    • Soft vs. direct CTA

    • Casual vs. formal tone

    • Short vs. long messages


InMail Subject Line Examples

1. It seems we have a mutual connection, [First Name]

  • Reply rate: 50%

  • Why it works: Mentioning a mutual connection builds trust and familiarity. This makes the message feel less cold and invites replies.

2. Hi [First Name], I noticed you reacted to [AuthorName]’s post on [SubjectOfThePost]

  • Reply rate: 35%

  • Why it works: This subject feels hyper-personalized because it references a specific LinkedIn activity. It shows you’re paying attention to your lead’s interests, making the outreach feel more relevant.

3. Saw you are also a member of [GroupName]

  • Reply rate: 27%

  • Why it works: This approach leverages LinkedIn groups as a shared interest. It serves as an excellent conversation starter and makes the message feel less intrusive.

4. Any thoughts on [SpecificTopic]?

  • Reply rate: 27%

  • Why it works: Open-ended questions spark curiosity and engagement. This subject invites the recipient to share their perspective, making them feel valued and more likely to respond.

5. [CompetitorName] is doing this—are you?

  • Reply rate: 25%

  • Why it works: This taps into FOMO (fear of missing out) and competition. It challenges the recipient to think about their own strategy, prompting curiosity and engagement.

6. Curious how [YourCompanyName] can help you?

  • Reply rate: 23%

  • Why it works: This subject line directly addresses the recipient’s potential needs while sparking curiosity. It also positions your company as a helpful resource rather than sounding overly salesy.

7. Generate 30+ leads every month, [First Name]!

  • Reply rate: 17%

  • Why it works: A bold, benefit-driven subject line immediately captures attention. It appeals to results-focused professionals looking to improve their lead-generation efforts.

8. [Lead’sCurrentCompanyName]’s pain points are your biggest advantage, [First Name]!

  • Reply rate: 15%

  • Why it works: This approach shifts the focus to problem-solving, encouraging the recipient to think strategically about how they can leverage their company’s challenges to their own advantage.


Final Tip:

  • Keep subject lines short (under 10 words) for higher open rates.

  • Personalization increases reply rates—use names, companies, or relevant topics.

  • Avoid salesy language—focus on curiosity, value, and relevance.

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