Which offline channels have worked most effectively in your digital marketing strategy?
The intersection of digital and direct mail can be a powerful combination. I have run many direct mail campaigns (actually direct FedEx!), where a package is sent to a prospect, and the materials point them back to a website, where they are prompted to enter a PIN or other code. From there, you've identified who you've reached and can capture data (through surveys or other means) on their current challenges, tech stack, etc., and even offer an incentive to book a meeting with sales. In some of these campaigns, I've seen 50%+ response rates.
This will be very specific to your business and offerings, but I have found success in print within niche publications. Oftentimes you’ll want to pair this with a digital channel to amplify the message. Said differently, to meet your potential customers where they are, the niche and sometimes non-digital channel works. However, remember the success metrics will look different from digital.