The Best LinkedIn Mass Messaging Tool For Scalable Outreach in 2025

A LinkedIn mass messaging tool lets you reach prospects at scale. Here are the tools and strategies to send mass messages while keeping your account safe.

Chris Tweten
February 19, 2025

LinkedIn is one of the best platforms for prospecting. The only issue is that reaching out takes time. You have to send invites manually, wait until you get accepted, and build relationships before pitching a sale. That all changed when LinkedIn mass messaging tools stepped in. 

But, it didn’t take long for marketers to realize that sending mass messages is a quick way for accounts to get banned. To generate more leads on LinkedIn, you must do it sustainably, using tools and strategies that help you scale outreach and keep your account safe. 

Let's take a closer look.

How To Use A LinkedIn Mass Messaging Tool 

No matter which mass messaging tool you’re using, it’s best to stick to what LinkedIn was made for—meaningful and authentic connections. That means sending personalized, thoughtful, and valuable messages to people you actually want to network with. Here’s how:

Find People Who Fit Your Ideal Customer Profile (ICP)

Priority #1 for all types of outreach is looking for people who fit your ICP. These people get the most value from your LinkedIn posts, the products you sell, or the services you provide. 

LinkedIn’s search filters are a great start. You could find leads based on demographics, industry, or even active job seekers. However, prospecting using this strategy will take hours. You can get back precious time using a LinkedIn automation tool like Botdog. 

linkedin automation

With Botdog, you can import leads directly from your LinkedIn searches, Live event attendees, your lead lists, or even those who liked your recent posts. This ensures that you have a sustainable pipeline of cold and warm LinkedIn leads to reach out to. 

Create Personalized Messages For Each Lead

Most mass messaging tools use {{firstName}} personalization and call it a day. Prospects get these emails daily and are probably sick of reading the same thing. If you want your LinkedIn cold message to resonate, you need to stop using generic personalization strategies. 

linkedin campaign

Botdog helps combat these generic personalization using {{customFields}}. Instead of first or company names, you can use custom snippets for every lead in your pipelines. All you have to do is import leads from a CSV, map out the custom fields, and let Botdog fill the data for you. 

For example, using ChatGPT, you can add custom fields in your CSV column for pain points generated for each lead. Let’s say you want to nurture existing connections. You can write a LinkedIn message like: 

“Hey, {{firstName}}, with {{industryNews}} coming up, our team decided to run a study discussing new ways of dealing with {{painPoint}}. We’d love for you to check it out, and maybe give your thoughts?”

Nurture Your Existing Network

Don’t just focus on cold LinkedIn prospecting. There’s a lot of value to gain from nurturing those already in your network. That’s because, according to the latest LinkedIn Algorithm update, prospects are 70% more likely to see your next posts if they reply to your DMs. 

However, manually sending messages to each of your connections will take forever. Instead, you can download a list of your connections by going to your account and clicking “Get a copy of your data.”

linkedin mass messages

Once you have a copy of your connections, upload that to your LinkedIn mass messaging and start nurturing warm prospects. But don’t send messages to leads all at once. That just looks like spam. To avoid this issue, stagger your sending times and volume. 

Stagger Sending Times and Sending Volume 

When it comes to sending volumes, we have to follow LinkedIn’s guidelines. If you’re on a paid account, you can send 150 invitations and 1,000 messages weekly. For a 5-day workweek, that’s 30 invites and 200 messages daily. If you have a newer account, it’s best to send less. 

Remember, you don’t want to send messages all at once. With Botdog advanced automation features, you don’t have to worry about when to send. Botdogs mimics human behavior and ensures your account’s safety through multiple safeguards, action limits, and random delays. 

Always Send a Follow-up (But Not Immediately)

Multiple studies found that sending a follow-up 1 day after your initial message reduces reply rates by 11%. Those who wait for up to three days to follow up improve reply rates by 31%. 

But you don’t want to start crafting your follow-ups after day three. LinkedIn mass messaging tool, Botdog, lets you automate sales outreach sequences from the first message to each subsequent follow-up. 

Pro tip: You can increase follow-up reply rates by giving prospects a reason to respond instead of just asking if they saw your last message. Share a relevant post, a quick industry insight, or a helpful case study related to their industry. 

LinkedIn Messaging Limits You Need To Follow

Spammy messages are still hitting LinkedIn. In 2023, LinkedIn blocked over 121 million fake accounts. To help combat spam, LinkedIn implemented strict sending and connection limits. 

LinkedIn Connection Limits

  • Free: 80 Connection Weekly
  • Premium: 100 Connection Weekly

LinkedIn Message Limits

  • Free: 1000 Messages Weekly
  • Premium: 1500 Messages Weekly

LinkedIn Profile View Limits

  • Free: 500 Profile Views Daily
  • Premium: 2,000 Profile Views Daily

LinkedIn Searches

  • Free: 1,000 Searches Daily
  • Premium: 2,500 Searches Daily

You must track every connection request or message you send to avoid blocking your account. Tools like Botdog help you keep your sending limits and imports in check so you can focus more on developing your ICP, nurturing connections, or securing a sale.  

Key Takeaways

LinkedIn mass messaging tools aren’t meant for spamming—they’re meant to help you scale and automate the genuine connections you’re already building manually. When used correctly, they can save time without sacrificing authenticity. To recap, here are five key strategies for making the most of a LinkedIn mass messaging tool:

  • Find people who fit your ideal customer profile (ICP)
  • Create personalized messages using automation or {{customFields}}
  • Don’t forget to nurture your existing network 
  • Stagger sending times and volume to avoid looking like spam
  • When sending a follow-up, don’t forget to add value

With Botdog, you’re assured that every LinkedIn outreach campaign is automated, scalable, and sustainable. Try it out for free today!

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The first few words in your LinkedIn post can convince people to click on "see more", a create a ton of engagement. Here's our top 30 hooks, just for you.
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