Sending emails to an unverified list? 🚨 You might be killing your deliverability.
1 Jul 2025 · 1 min

0:55
In this instructional segment, the speaker warns against sending email campaigns to unclean, unverified lists. He explains that sending to invalid addresses generates bounce‑backs, which signal Internet Service Providers (ISPs) that the sender’s messages are low‑quality or spam. As a result, ISPs begin to flag all future mail from that sender, automatically routing it to recipients’ spam folders instead of inboxes. The core advice is to perform list hygiene—verify and remove bad addresses—so that the majority of outgoing emails are valid, preserving sender reputation and ensuring proper deliverability.










