Email Spam Blocks Fintech Deals: Audit Your Domain First
- Cormac Repman

- Aug 21
- 2 min read
We lost visibility on a high-ticket deal because our emails never reached the prospect's inbox.
A founder at a fintech infrastructure company ($100k+ deal size) told us our initial outreach messages landed in spam. We'd spent time researching their business, crafting a targeted email, and preparing for the cold call. The prospect wanted to hear from us. They just never saw the message. When we eventually connected by phone, their first question was honest: "How did you get my personal cell number?" The skepticism made sense. Our domain hadn't warmed them up. The email system flagged us as unknown.
This isn't a new problem. But in fintech, where trust moves slower and deal sizes run larger, it's a deal killer we keep underestimating.
Here's what we learned: C-suite fintech buyers use aggressive spam filters. Their inboxes are target-rich environments for bad actors. When your domain reputation is cold and your infrastructure hasn't been verified, you end up in junk by default. No amount of personalization fixes a technical failure at delivery.
The call itself showed what could work. Once we reached the prospect directly and explained our focus on high-end banking and finance, they booked a meeting. Sixty-two seconds into the conversation, we'd cleared the credibility gap. But we shouldn't have needed the phone call to recover. The email should have landed in their primary inbox from the start.
We've since changed how we approach fintech outreach. Domain warmup comes first, not second. That means consistent email activity from your sending domain at least two weeks before you start cold outreach campaigns. Send newsletters, internal updates, anything legitimate that establishes a sending pattern. Set up SPF, DKIM, and DMARC records. Verify them. Run them through delivery checkers.
Get a warmup service if your team doesn't have scale. There are several that work. They send gradual volumes of emails from your domain to engaged recipients, slowly building sender reputation. It's not glamorous. It doesn't feel like work. But it prevents the scenario we lived through: great prospect, solid message, missed inbox.
Second, warm your list before cold calling. A prospect who receives an email from you a few days before your call has two reference points for legitimacy. They've seen your domain. Their filters decided you're worth showing them. When you call, you're not a complete stranger with unknown contact information. You're a known sender.
Third, ask permission to call differently in fintech. The prospect who questioned how we got their cell was right to ask. In high-trust industries, the phone should follow email, not replace it. Use email to establish domain reputation. Use email to introduce your message. Then use the phone to deepen the conversation.
The deal still closed, eventually. But we spent extra cycles recovering credibility that should have been in place from day one. That's time we can't get back. If you're doing fintech outreach, audit your domain health now. Check your deliverability rates. Warm your domain. Then pick up the phone. Your inbox position directly impacts your close rate.

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