fix r2312

src/mail/ngx_mail_proxy_module.c

diff --git a/src/mail/ngx_mail_proxy_module.c b/src/mail/ngx_mail_proxy_module.c
index bd2bcf9..610d009 100644
--- a/src/mail/ngx_mail_proxy_module.c
+++ b/src/mail/ngx_mail_proxy_module.c
@@ -104,7 +104,7 @@
 };
 
 
-static u_char  smtp_ok[] = "250 2.0.0 OK" CRLF;
+static u_char  smtp_ok[] = "235 2.0.0 OK" CRLF;
 
 
 void