1 files changed, 15 insertions, 1 deletions
diff --git a/src/mail/ngx_mail_pop3_handler.c b/src/mail/ngx_mail_pop3_handler.c
index 019927d3d..edfd98681 100644
--- a/src/mail/ngx_mail_pop3_handler.c
+++ b/src/mail/ngx_mail_pop3_handler.c
@@ -151,7 +151,16 @@ ngx_mail_pop3_auth_state(ngx_event_t *rev)
 
     rc = ngx_mail_read_command(s, c);
 
-    if (rc == NGX_AGAIN || rc == NGX_ERROR) {
+    if (rc == NGX_AGAIN) {
+        if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
+            ngx_mail_session_internal_server_error(s);
+            return;
+        }
+
+        return;
+    }
+
+    if (rc == NGX_ERROR) {
         return;
     }
 
@@ -281,6 +290,11 @@ ngx_mail_pop3_auth_state(ngx_event_t *rev)
             s->arg_start = s->buffer->start;
         }
 
+        if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
+            ngx_mail_session_internal_server_error(s);
+            return;
+        }
+
         ngx_mail_send(c->write);
     }
 }