nginx 0.6.8 *) Change: now nginx tries to set the "worker_priority", "worker_rlimit_nofile", "worker_rlimit_core", and "worker_rlimit_sigpending" without super-user privileges. *) Change: now nginx escapes space and "%" in request to a mail proxy authentication server. *) Change: now nginx escapes "%" in $memcached_key variable. *) Bugfix: nginx used path relative to configuration prefix for non-absolute configuration file path specified in the "-c" key; bug appeared in 0.6.6. *) Bugfix: nginx did not work on FreeBSD/sparc64.

--- a/src/mail/ngx_mail_parse.c
+++ b/src/mail/ngx_mail_parse.c
@@ -434,6 +434,10 @@ ngx_int_t ngx_imap_parse_command(ngx_mai
             break;
 
         case sw_argument:
+            if (ch == ' ' && s->quoted) {
+                break;
+            }
+
             switch (ch) {
             case '"':
                 if (!s->quoted) {