Email deliverability lesson: Why your B2B emails might be going to spam (and it's not your content)

Been doing email marketing for B2B for 3 years and learned something counterintuitive about deliverability that I wish I'd known earlier.

The issue I kept facing: Great open rates on email campaigns to my own subscribers, but terrible performance when reaching out to new B2B prospects. Same content, same sending infrastructure, completely different results.

What I discovered: The problem wasn't my subject lines or content - it was the email addresses I was targeting.

Here's what was happening:

The solution that changed everything: Instead of generic company emails, I started finding personal business emails of actual decision makers (CEOs, founders, department heads).

Why this works for deliverability:

  • Personal emails have better sender reputation
  • Less volume = less likely to be flagged
  • Higher engagement rates (people actually read their personal email)
  • Better domain reputation when targeting smaller companies

How to find these emails: WHOIS data is publicly available and often contains business owner contact info. Takes some research but the deliverability improvement is massive.

Results:

  • Inbox placement: ~60% → ~85%
  • Engagement rates: 2x improvement
  • Much better sender reputation over time

The takeaway: Sometimes deliverability issues aren't technical - they're about WHO you're emailing, not HOW you're emailing.

Anyone else noticed similar patterns with B2B email deliverability?

Posted Aug 5, 2025, 10:05 PM UTC

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