Two channels, one goal
You've identified the hiring manager. You know their name, their title, the team they run. Now you have a choice: do you send a LinkedIn message or a cold email?
Both are forms of cold outreach. Both can work. But they're fundamentally different channels with different strengths, different limitations, and very different response rates. Let's break it down honestly so you can pick the right one — or use both strategically.
Response rates: what the data says
Let's start with the numbers. These vary by industry and role, but the general pattern is consistent:
- Cold email: 5-15% response rate for well-written, personalized outreach. Top performers hit 20%+.
- LinkedIn InMail (paid): LinkedIn reports an average response rate of around 10-25%, but this is heavily skewed by recruiter-to-candidate messages, which get higher engagement. For job seekers reaching out to hiring managers, expect 5-10%.
- LinkedIn connection request + message: Connection acceptance rates hover around 20-30%. Of those who accept, maybe 30-40% respond to your follow-up message. Net response rate: about 6-12%.
On the surface, the numbers look comparable. But response rate alone doesn't tell the full story. The quality and depth of those responses differ significantly.
The case for cold email
Email has some major structural advantages that LinkedIn simply can't match:
You own the channel
Email is an open protocol. You're not at the mercy of LinkedIn's algorithm, connection limits, or InMail credits. You can email anyone, anytime, as many times as you want (within reason). LinkedIn limits how many connection requests you can send, how many InMails you get, and can restrict your account if you send too many messages.
Longer shelf life
Emails sit in someone's inbox until they deal with them. LinkedIn messages get buried under a flood of recruiter spam, notifications, and connection requests. A hiring manager might check their LinkedIn messages once a week. They check their email dozens of times a day.
You can follow up naturally
Following up on a cold email is normal and expected. A simple "bumping this to the top of your inbox" feels professional. Following up on a LinkedIn message feels pushy — the platform isn't built for threaded, ongoing conversations the way email is.
More room to personalize
Email gives you full control over formatting, length, and presentation. You can include links to your portfolio, a specific project, or a relevant blog post. LinkedIn messages are more constrained and feel more casual, which can work for or against you depending on the context.
It feels more professional
Rightly or wrongly, an email to someone's work inbox carries more weight than a LinkedIn DM. It signals that you took the time to find their email address, which itself demonstrates initiative and resourcefulness — qualities hiring managers value.
The case for LinkedIn DMs
LinkedIn isn't without its strengths. In certain situations, it's actually the better play:
No email needed
The biggest advantage is obvious: you don't need to find anyone's email address. You can reach almost anyone on LinkedIn directly, either through a connection request or InMail. This removes the biggest friction point in cold outreach.
Your profile is your resume
When you message someone on LinkedIn, they can immediately see your experience, education, recommendations, and mutual connections. Your profile does a lot of the selling for you. With email, you have to establish credibility from scratch in a few sentences.
Mutual connections build trust
If you share mutual connections with the hiring manager, LinkedIn makes that visible. This creates instant social proof. "Oh, they know Sarah and Mike from my old company" goes a long way toward getting someone to take your message seriously.
Lower barrier for casual conversations
LinkedIn messages feel inherently less formal than email. For exploratory conversations — "I'd love to learn more about your team" — this casualness can work in your favor. Not every outreach needs to be a polished pitch.
Where LinkedIn falls short
Despite those advantages, LinkedIn has some serious problems as an outreach channel for job seekers:
- The spam problem. Hiring managers and recruiters get flooded with LinkedIn messages. Connection requests from strangers, InMails from salespeople, pitches from vendors. Your thoughtful message is competing with all of that noise. Email inboxes are busy too, but the signal-to-noise ratio is generally better for personal outreach.
- Connection request limits. LinkedIn actively throttles how many connection requests you can send per week (roughly 100, though it varies). If you're doing serious outreach to multiple companies, you'll hit the ceiling fast. Email has no such limit.
- InMail costs money. Free LinkedIn accounts get zero InMails. Premium subscriptions give you a small monthly allocation (5-15 depending on the plan). If you want to message people you're not connected to, you're paying for the privilege.
- Message formatting is limited. You can't bold text, add bullet points, or include rich formatting in LinkedIn messages. For a quick hello, that's fine. For a substantive pitch about why you're the right person for a role, the constraints are real.
- You're on LinkedIn's turf. LinkedIn can change its algorithm, restrict your account, or limit messaging features at any time. Your email provider can't stop you from sending a polite cold email.
The verdict: use both, but lead with email
Here's the honest answer: the best outreach strategy uses both channels. But if you can only pick one, pick email.
Email gets higher-quality responses, gives you more control over your message, and doesn't have artificial limits on how many people you can reach. The only barrier is finding the email address — and that's a solvable problem.
Here's the playbook that works best:
- Day 1: Send a personalized cold email to the hiring manager's work address.
- Day 2: Send a LinkedIn connection request with a short note referencing your email. Something like: "Hi [Name], I sent you a quick email yesterday about the [role] — would love to connect here too."
- Day 4-5: If no response to either, send a brief email follow-up. Keep it one or two sentences.
This multi-channel approach gives you two touchpoints without feeling aggressive. The LinkedIn request adds a face and profile to your name. The email carries the substance.
Make the hard part easy
The reason most people default to LinkedIn is because it's easier. You don't need to find an email address. You don't need to figure out who to contact. You just search and message.
But easier doesn't mean more effective. The extra effort of cold email — finding contacts, researching the company, personalizing each message — is exactly what makes it work. It shows you care enough to do the work most candidates won't.
If the research is what's holding you back, dm-the-boss handles it for you. Enter a company and role. It finds the right contacts, figures out their emails, writes personalized messages, and sends them from your Gmail. You review everything in the app before it goes out.
You get all the advantages of cold email without the hours of research. That's the best of both worlds.