diff --git a/packages/twenty-server/src/engine/core-modules/imap-smtp-caldav-connection/services/imap-smtp-caldav-connection.service.ts b/packages/twenty-server/src/engine/core-modules/imap-smtp-caldav-connection/services/imap-smtp-caldav-connection.service.ts
index 5408778f972..c0ee11bc2bf 100644
--- a/packages/twenty-server/src/engine/core-modules/imap-smtp-caldav-connection/services/imap-smtp-caldav-connection.service.ts
+++ b/packages/twenty-server/src/engine/core-modules/imap-smtp-caldav-connection/services/imap-smtp-caldav-connection.service.ts
@@ -53,6 +53,14 @@ export class ImapSmtpCaldavService {
       },
     });
 
+    // ImapFlow is EventEmitter — missing 'error' listener crashes process on socket timeout.
+    client.on('error', (error) => {
+      this.logger.error(
+        `IMAP test connection error for ${handle}: ${error.message}`,
+        error.stack,
+      );
+    });
+
     try {
       await client.connect();
 
diff --git a/packages/twenty-server/src/modules/messaging/message-import-manager/drivers/imap/providers/imap-client.provider.ts b/packages/twenty-server/src/modules/messaging/message-import-manager/drivers/imap/providers/imap-client.provider.ts
index 65747593481..e6e02c1eec2 100644
--- a/packages/twenty-server/src/modules/messaging/message-import-manager/drivers/imap/providers/imap-client.provider.ts
+++ b/packages/twenty-server/src/modules/messaging/message-import-manager/drivers/imap/providers/imap-client.provider.ts
@@ -94,6 +94,14 @@ export class ImapClientProvider {
       greetingTimeout: ImapClientProvider.GREETING_TIMEOUT_MS,
     });
 
+    // ImapFlow is long-lived EventEmitter — missing 'error' listener crashes process on socket timeout.
+    client.on('error', (error) => {
+      this.logger.error(
+        `IMAP client error for ${connectedAccount.handle}: ${error.message}`,
+        error.stack,
+      );
+    });
+
     try {
       await client.connect();