Every few years, someone declares email marketing dead. And every time, the data proves them wrong. I've worked with founders and startup CEOs who obsess over paid ads and social media strategy while completely neglecting their email list — and then wonder why their conversion rates are flat. Email isn't glamorous, but it's still one of the most effective and cost-efficient channels available, especially in B2B.
Let me share what I've seen work, and what I've seen go wrong.
The most common mistake I see with early-stage companies is thinking about email marketing as a broadcast tool — blast out a promotion, hope someone buys, repeat. That's the 2010 version of email. The modern version is much more about automation, segmentation, and using email as a nurture engine to move people through the funnel over time.
Here's the core logic: most buyers won't convert the first time they encounter your product. They need to be reminded, educated, and given reasons to trust you before they're ready to act. Email is how you do that without paying for ads every time. But to email someone, you need their contact information — which means you need a reason for them to give it to you.
Building your list requires incentives. Sign up for a discount or coupon (B2C), access to a gated research report or whitepaper (B2B), first notification of new product launches, or a newsletter with genuinely useful industry content. The value proposition matters. People are protective of their inboxes, and the incentive has to be real.
Once you have a list, the platform you use determines what you can actually do. This is where a lot of companies underspend on tooling and then wonder why their email program isn't working. Mailchimp is fine for getting started — it's affordable and beginner-friendly. But it's a broadcast tool, not an automation platform. For anything sophisticated — behavior-triggered sequences, lead scoring, multi-step nurture journeys, CRM integration — you need HubSpot, Marketo, or Pardot. These platforms let you build logic: if a contact opens email 1 but doesn't click, send them a different follow-up than someone who clicked through to the product page. That kind of conditional sequencing is what turns a newsletter into an actual conversion machine.
The key metrics in email marketing are open rate, click-through rate, conversion rate, and list growth. You should be A/B testing constantly — subject lines, send times, call-to-action copy, email templates. The companies that do email well are the ones that treat it as an ongoing experiment, not a set-it-and-forget-it channel.
One thing that kills email programs: over-sending. If you're emailing the same list every other day with promotions, expect your unsubscribe rate to climb and your domain reputation to take a hit. A damaged sender reputation means your emails start landing in spam, which is very difficult to recover from. Consistency and value beat frequency and volume every time.
In B2B specifically, email is deeply connected to your CRM and marketing automation strategy. The people managing email campaigns often overlap with marketing operations — setting up workflows in Salesforce, building lead scoring models, creating nurture tracks for different audience segments. If you're a marketer interested in email, developing fluency in HubSpot or Marketo is the smartest thing you can do for your career, because it opens the door to a much broader set of marketing operations and CRM roles.
The companies that get email right treat it as infrastructure — not a campaign channel, but a relationship channel. The goal isn't to blast your list. The goal is to show up consistently with something worth reading, build trust over time, and be top of mind when your buyer is finally ready to act.
That's a slow game, but it compounds. And the marketers who understand that are the ones who build email programs that actually last.
© 2026 Rachel Hong · Accelerator Consulting