You're probably wondering if you should stick with just cold email or if you need to add LinkedIn, phone calls, or direct mail to get results. The answer depends on where you are right now - and most people get this wrong.
Here's the thing: multichannel outreach sounds like it should work better. More touches, more channels, more chances to get a response. But in practice, most agencies and service businesses run multichannel campaigns that are poorly executed on all channels instead of nailing one channel first.
If you're not hitting 20%+ reply rates and 5-10 meetings a month from cold email alone, you don't have a channel problem. You have an execution problem.
Single channel let's you:
When we work with clients who were previously running LinkedIn + email + phone, the first thing we do is strip it back to just email. Not because multichannel is bad - but because their email fundamentals were broken. They'd send generic emails, get 2-3% replies, then add LinkedIn in hopes that would fix it. It doesn't.
The math is simple: if your email is converting at 2%, adding another 2% channel doesn't fix the 2% email problem. You've just created two broken channels instead of one.
Here's what actually happens when you nail cold email execution as a single channel:
For a typical B2B service business sending 200 emails per week across 4 campaigns, that's roughly:
That's not a pipe dream. That's what happens when your cold email copy is actually good, your targeting is tight, and your email infrastructure is set up correctly.
Once you're consistently hitting 20%+ reply rates and 5-10 meetings a month from email alone, then - and only then - does adding a second channel make sense.
Here's the catch: multichannel doesn't mean "do everything." It means picking one complementary channel and doing it well.
The most effective combination we see is cold email + LinkedIn. Not email + LinkedIn + phone + direct mail. Just two channels.
Here's why it works:
Specific example of a two-channel sequence:
When this works, reply rates go from 25% to 35-40%. When this doesn't work, it's because the email copy was weak to begin with, and LinkedIn just made you annoying instead of helpful.
A lot of people ask about adding phone calls to their outreach. I'll be direct: if you're not good at email, you won't be good at phone cold calling either. The skills don't transfer that way.
Phone works when you're calling warm leads - people who've already engaged with your email. It's a terrible way to start a conversation with a stranger.
If someone hasn't replied to your email, calling them cold creates friction, not sales. Save the phone calls for the 5% of people who actually responded and are interested but haven't booked a meeting yet.
Ask yourself these questions:
If you answered no to any of these, stay single channel. Go deeper on email. Nail the fundamentals first.
If you answered yes to all four, then adding LinkedIn makes sense. Just don't add it until you've proven email works.
People add channels because they're impatient or because they feel like "I should be doing more." That's not strategy. That's panic.
Multichannel only works when:
Most people skip these prerequisites and end up with scattered results they can't even measure.
Start with cold email as a single channel. Get to 20%+ reply rates and 5-10 meetings a month. Then - if you want - add LinkedIn. Everything else is just distraction.
The companies signing the most clients aren't the ones doing 10 things okay. They're the ones doing one thing really well.
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