Email List Health Check Before Black Friday with Radek Kaczyński, Bouncer CEO

You have 20,000 contacts on your email list—but is sending all of them your Black Friday campaign a good idea? Monica Badiu sits down with Radek Kaczyński, CEO of Bouncer, to discuss email verification, ageing lists, and the risks of increasing sends after months of inconsistent contact. You’ll learn what to check before a promotion, how verification differs from double opt-in, and why a technically valid address still needs a thoughtful sending strategy. Radek also shares Bouncer’s own deliverability setback and a 20% first-purchase offer for listeners.

Listen to the full conversation with Radek Kaczyński on Apple Podcasts, Spotify.

Check your list with Bouncer:

Master The Inbox listeners get 20% off a first purchase with this link OR contact the website chat and mention that you came from Monica and Master The Inbox.

00:00 — Is your list ready for Black Friday?
02:00 — Three risks in a 20,000-contact campaign plan
05:00 — Bouncer’s own deliverability setback
08:00 — The service-counter problem that led to Bouncer
16:00 — Why addresses become invalid or risky
24:00 — Bounce rates and what to do when they rise
33:00 — What verification adds to your email platform
40:00 — Older segments, re-engagement and quiet customers
46:00 — Verification versus double opt-in
53:00 — Bouncer and the listener offer

What You’ll Learn in This Episode

• List quality, sending consistency, and engagement are separate issues to review before increasing promotional emails.
• An address can be incorrect when someone signs up or become unusable later as their circumstances change.
• Verification can provide information before sending; bounce reports show what happened when a delivery was attempted.
• Rising bounce rates deserve investigation, and acceptable limits and enforcement vary between email providers.
• Older segments may need technical checks and a careful re-engagement plan before they join a promotion.
• Low email engagement doesn’t describe every aspect of a customer relationship; purchase history and other relevant signals add context.
• Verification and double opt-in serve different purposes and can complement one another.
• Deliverability recovery can take time: Radek says Bouncer’s own problem took about six months to stabilise.

About Radek

Radek Kacyński is the CEO of Bouncer, an email verification and deliverability platform that helps businesses maintain healthier email lists and improve their chances of reaching the inbox. With a focus on email data quality and sender reputation, Bouncer helps marketers understand how to protect their deliverability, reduce bounce rates, and get more value from their email marketing efforts.

Bouncer | Radek on LinkedIn

Check your list with Bouncer:

Master The Inbox listeners get 20% off a first purchase with this link OR contact the website chat and mention that you came from Monica and Master The Inbox.

Other links:

• Get help with your copywriting by scheduling a free discovery call: https://www.monicabadiu.com/contact
• Get to know more about Monica Badiu: https://www.linkedin.com/in/monicabadiu
• Join the community for course creators interested in email marketing 
• Take the free Email Bottleneck Assessment: https://www.monicabadiu.com/email-revenue-self-assessment/  
• Visit Monica’s website: https://www.monicabadiu.com 
• Listen more Master the Inbox episodes: https://www.monicabadiu.com/master-the-inbox-podcast/ 
• Get your Black Friday resources: https://www.monicabadiu.com/black-friday-resources/ 
• Read Monica’s blogs: https://www.monicabadiu.com/blog
• Get your freebies: https://www.monicabadiu.com/freebie