TL;DR: Error 0x800CCC0F means the connection to your mail server was lost mid‑operation. Often caused by unstable networks, firewall blocks, or server timeouts. Jump to Solution 4 to check your ports and encryption. Few email errors are as disruptive as the sudden “Server Connection Interrupted” message. You’re in the middle of sending or receiving, and … Continue reading Fix: Outlook Error 0x800CCC0F – Server Connection Interrupted