new file mode 100644
--- /dev/null
+++ b/src/imap/ngx_imap_ssl_module.c
@@ -0,0 +1,174 @@
+
+/*
+ * Copyright (C) Igor Sysoev
+ */
+
+
+#include <ngx_config.h>
+#include <ngx_core.h>
+#include <ngx_imap.h>
+
+
+#define NGX_DEFLAUT_CERTIFICATE      "cert.pem"
+#define NGX_DEFLAUT_CERTIFICATE_KEY  "cert.pem"
+
+
+static void *ngx_imap_ssl_create_conf(ngx_conf_t *cf);
+static char *ngx_imap_ssl_merge_conf(ngx_conf_t *cf, void *parent, void *child);
+
+
+static ngx_command_t  ngx_imap_ssl_commands[] = {
+
+    { ngx_string("ssl"),
+      NGX_IMAP_MAIN_CONF|NGX_IMAP_SRV_CONF|NGX_CONF_FLAG,
+      ngx_conf_set_flag_slot,
+      NGX_IMAP_SRV_CONF_OFFSET,
+      offsetof(ngx_imap_ssl_conf_t, enable),
+      NULL },
+
+    { ngx_string("ssl_certificate"),
+      NGX_IMAP_MAIN_CONF|NGX_IMAP_SRV_CONF|NGX_CONF_TAKE1,
+      ngx_conf_set_str_slot,
+      NGX_IMAP_SRV_CONF_OFFSET,
+      offsetof(ngx_imap_ssl_conf_t, certificate),
+      NULL },
+
+    { ngx_string("ssl_certificate_key"),
+      NGX_IMAP_MAIN_CONF|NGX_IMAP_SRV_CONF|NGX_CONF_TAKE1,
+      ngx_conf_set_str_slot,
+      NGX_IMAP_SRV_CONF_OFFSET,
+      offsetof(ngx_imap_ssl_conf_t, certificate_key),
+      NULL },
+
+    { ngx_string("ssl_ciphers"),
+      NGX_IMAP_MAIN_CONF|NGX_IMAP_SRV_CONF|NGX_CONF_TAKE1,
+      ngx_conf_set_str_slot,
+      NGX_IMAP_SRV_CONF_OFFSET,
+      offsetof(ngx_imap_ssl_conf_t, ciphers),
+      NULL },
+
+      ngx_null_command
+};
+
+
+static ngx_imap_module_t  ngx_imap_ssl_module_ctx = {
+    NULL,                                  /* create main configuration */
+    NULL,                                  /* init main configuration */
+
+    ngx_imap_ssl_create_conf,              /* create server configuration */
+    ngx_imap_ssl_merge_conf                /* merge server configuration */
+};
+
+
+ngx_module_t  ngx_imap_ssl_module = {
+    NGX_MODULE_V1,
+    &ngx_imap_ssl_module_ctx,              /* module context */
+    ngx_imap_ssl_commands,                 /* module directives */
+    NGX_IMAP_MODULE,                       /* module type */
+    NULL,                                  /* init module */
+    NULL                                   /* init process */
+};
+
+
+static void *
+ngx_imap_ssl_create_conf(ngx_conf_t *cf)
+{           
+    ngx_imap_ssl_conf_t  *scf;
+            
+    scf = ngx_pcalloc(cf->pool, sizeof(ngx_imap_ssl_conf_t));
+    if (scf == NULL) {
+        return NGX_CONF_ERROR;
+    }
+
+    /*
+     * set by ngx_pcalloc():  
+     *
+     *     scf->certificate.len = 0;
+     *     scf->certificate.data = NULL;
+     *     scf->certificate_key.len = 0;
+     *     scf->certificate_key.data = NULL;
+     *     scf->ciphers.len = 0;
+     *     scf->ciphers.data = NULL;
+     */
+
+    scf->enable = NGX_CONF_UNSET;
+
+    return scf;
+}
+
+
+static char *
+ngx_imap_ssl_merge_conf(ngx_conf_t *cf, void *parent, void *child)
+{
+    ngx_imap_ssl_conf_t *prev = parent;
+    ngx_imap_ssl_conf_t *conf = child;
+
+    ngx_conf_merge_value(conf->enable, prev->enable, 0);
+
+    if (conf->enable == 0) {
+        return NGX_CONF_OK;
+    }
+
+    ngx_conf_merge_str_value(conf->certificate, prev->certificate,
+                             NGX_DEFLAUT_CERTIFICATE);
+
+    ngx_conf_merge_str_value(conf->certificate_key, prev->certificate_key,
+                             NGX_DEFLAUT_CERTIFICATE_KEY);
+
+    ngx_conf_merge_str_value(conf->ciphers, prev->ciphers, "");
+
+
+    /* TODO: configure methods */
+
+    conf->ssl_ctx = SSL_CTX_new(SSLv23_server_method());
+
+    if (conf->ssl_ctx == NULL) {
+        ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0, "SSL_CTX_new() failed");
+        return NGX_CONF_ERROR;
+    }
+
+    if (ngx_pool_cleanup_add(cf->pool, ngx_ssl_cleanup_ctx, conf->ssl_ctx)
+        == NULL)
+    {
+        return NGX_CONF_ERROR;
+    }
+
+
+#if 0
+    SSL_CTX_set_options(conf->ssl_ctx, SSL_OP_ALL);
+    SSL_CTX_set_options(conf->ssl_ctx, SSL_OP_NO_SSLv3);
+    SSL_CTX_set_options(conf->ssl_ctx, SSL_OP_SINGLE_DH_USE);
+#endif
+
+    if (conf->ciphers.len) {
+        if (SSL_CTX_set_cipher_list(conf->ssl_ctx,
+                                   (const char *) conf->ciphers.data) == 0)
+        {
+            ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0,
+                          "SSL_CTX_set_cipher_list(\"%V\") failed",
+                          &conf->ciphers);
+        }
+    }
+
+    if (SSL_CTX_use_certificate_chain_file(conf->ssl_ctx,
+                                         (char *) conf->certificate.data) == 0)
+    {
+        ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0,
+                      "SSL_CTX_use_certificate_chain_file(\"%s\") failed",
+                      conf->certificate.data);
+        return NGX_CONF_ERROR;
+    }
+
+
+    if (SSL_CTX_use_PrivateKey_file(conf->ssl_ctx,
+                                    (char *) conf->certificate_key.data,
+                                    SSL_FILETYPE_PEM) == 0)
+    {
+        ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0,
+                      "SSL_CTX_use_PrivateKey_file(\"%s\") failed",
+                      conf->certificate_key.data);
+        return NGX_CONF_ERROR;
+    }
+
+    return NGX_CONF_OK;
+}