+ if ((err=(ctl->server.base_protocol->fetch_body)(mailserver_socket,ctl,num,&len))) {
+ if (err == PS_ERROR && ctl->server.retrieveerror) {
+ /*
+ * Mark a message with a protocol error as seen.
+ * This can be used to see which messages we've attempted
+ * to download, but failed.
+ */
+ if (ctl->server.retrieveerror == RE_MARKSEEN) {
+ if ((ctl->server.base_protocol->mark_seen)(mailserver_socket,ctl,num)) {
+ return(err);
+ }
+ }
+
+ if (ctl->server.retrieveerror != RE_ABORT) {
+ /*
+ * Do not abort download session. Continue with the next message.
+ *
+ * Prevents a malformed message from blocking all other messages
+ * behind it in the mailbox from being downloaded.
+ *
+ * Reconnect to SMTP to force this incomplete message to be dropped.
+ * Required because we've already begun the DATA portion of the
+ * interaction with the SMTP server (commands are ignored/
+ * considered part of the message data).
+ */
+ abort_message_sink(ctl);
+
+ // Ensure we don't delete the failed message from the server.
+ suppress_delete = TRUE;
+
+ // Bookkeeping required before next message can be downloaded.
+ goto flagthemail;
+ }
+ }
+