LinkedIn InMail Response Rate Benchmarks 2025
LinkedIn InMail response rate benchmarks by message type and industry. Data-driven targets for optimizing your InMail outreach strategy in 2025.
Understanding LinkedIn InMail Response Rates
LinkedIn InMail is the most premium outreach channel for B2B sales, offering direct access to decision-makers who may be unreachable by email. But with limited monthly credits, optimizing response rates is essential to justify the investment.
Key Findings
The personalization premium for InMail is dramatic. Personalized InMails achieve a 15% median response rate — 3x the rate of templated messages. This gap is larger than any other outreach channel, likely because InMail recipients can see exactly how much effort the sender invested. Generic InMails feel particularly lazy given the premium positioning of the channel.
InMails to Open Profiles (members who allow free InMail) respond at 18% median — the highest of any segment. These professionals have self-selected as open to outreach, making them inherently more receptive.
Timing and Volume Patterns
InMail response rates are sensitive to timing. Messages sent Tuesday through Thursday between 8-10 AM in the recipient’s timezone consistently outperform other windows. Monday InMails suffer from inbox overload, while Friday messages get buried over the weekend.
LinkedIn data also shows that response rates decline as monthly send volume increases. SDRs sending fewer than 50 InMails per month achieve higher response rates than those sending 100+, suggesting that quality and targeting deteriorate at higher volumes.
Maximizing InMail ROI
Given the cost per InMail (whether through Sales Navigator credits or InMail credits), treat every send as a high-value touch. Reserve InMail for prospects you cannot reach through other channels. Always personalize with a specific reference to their profile, company, or content. Keep the message under 150 words with a clear, single question at the end.
Scrapine helps you reserve expensive InMail credits for truly hard-to-reach prospects by first finding verified email addresses and phone numbers as alternative channels for your outreach.