nginx 0.5.15 *) Feature: the mail proxy supports authenticated SMTP proxying and the "smtp_auth", "smtp_capablities", and "xclient" directives. Thanks to Anton Yuzhaninov and Maxim Dounin. *) Feature: now the keep-alive connections are closed just after receiving the reconfiguration signal. *) Change: the "imap" and "auth" directives were renamed to the "mail" and "pop3_auth" directives. *) Bugfix: a segmentation fault occurred in worker process if the CRAM-MD5 authentication method was used and the APOP method was disabled. *) Bugfix: if the "starttls only" directive was used in POP3 protocol, then nginx allowed authentication without switching to the SSL mode. *) Bugfix: worker processes did not exit after reconfiguration and did not rotate logs if the eventport method was used. *) Bugfix: a worker process may got caught in an endless loop, if the "ip_hash" directive was used. *) Bugfix: now nginx does not log some alerts if eventport or /dev/poll methods are used.

new file mode 100644
--- /dev/null
+++ b/src/mail/ngx_mail_ssl_module.h
@@ -0,0 +1,47 @@
+
+/*
+ * Copyright (C) Igor Sysoev
+ */
+
+
+#ifndef _NGX_MAIL_SSL_H_INCLUDED_
+#define _NGX_MAIL_SSL_H_INCLUDED_
+
+
+#include <ngx_config.h>
+#include <ngx_core.h>
+#include <ngx_mail.h>
+
+
+#define NGX_MAIL_STARTTLS_OFF   0
+#define NGX_MAIL_STARTTLS_ON    1
+#define NGX_MAIL_STARTTLS_ONLY  2
+
+
+typedef struct {
+    ngx_flag_t       enable;
+
+    ngx_ssl_t        ssl;
+
+    ngx_flag_t       prefer_server_ciphers;
+    ngx_flag_t       starttls;
+
+    ngx_uint_t       protocols;
+
+    ssize_t          builtin_session_cache;
+
+    time_t           session_timeout;
+
+    ngx_str_t        certificate;
+    ngx_str_t        certificate_key;
+
+    ngx_str_t        ciphers;
+
+    ngx_shm_zone_t  *shm_zone;
+} ngx_mail_ssl_conf_t;
+
+
+extern ngx_module_t  ngx_mail_ssl_module;
+
+
+#endif /* _NGX_MAIL_SSL_H_INCLUDED_ */