--- a/src/mail/ngx_mail_auth_http_module.c
+++ b/src/mail/ngx_mail_auth_http_module.c
@@ -529,7 +529,7 @@ ngx_mail_auth_http_process_headers(ngx_m
                     continue;
                 }
 
-                p = ngx_pcalloc(s->connection->pool, size);
+                p = ngx_pnalloc(s->connection->pool, size);
                 if (p == NULL) {
                     ngx_close_connection(ctx->peer.connection);
                     ngx_destroy_pool(ctx->pool);
@@ -594,7 +594,7 @@ ngx_mail_auth_http_process_headers(ngx_m
             {
                 s->login.len = ctx->header_end - ctx->header_start;
 
-                s->login.data = ngx_palloc(s->connection->pool, s->login.len);
+                s->login.data = ngx_pnalloc(s->connection->pool, s->login.len);
                 if (s->login.data == NULL) {
                     ngx_close_connection(ctx->peer.connection);
                     ngx_destroy_pool(ctx->pool);
@@ -615,7 +615,8 @@ ngx_mail_auth_http_process_headers(ngx_m
             {
                 s->passwd.len = ctx->header_end - ctx->header_start;
 
-                s->passwd.data = ngx_palloc(s->connection->pool, s->passwd.len);
+                s->passwd.data = ngx_pnalloc(s->connection->pool,
+                                             s->passwd.len);
                 if (s->passwd.data == NULL) {
                     ngx_close_connection(ctx->peer.connection);
                     ngx_destroy_pool(ctx->pool);
@@ -652,8 +653,8 @@ ngx_mail_auth_http_process_headers(ngx_m
             {
                 ctx->errcode.len = ctx->header_end - ctx->header_start;
 
-                ctx->errcode.data = ngx_palloc(s->connection->pool,
-                                               ctx->errcode.len);
+                ctx->errcode.data = ngx_pnalloc(s->connection->pool,
+                                                ctx->errcode.len);
                 if (ctx->errcode.data == NULL) {
                     ngx_close_connection(ctx->peer.connection);
                     ngx_destroy_pool(ctx->pool);
@@ -692,7 +693,7 @@ ngx_mail_auth_http_process_headers(ngx_m
                     ctx->err.len = ctx->errcode.len + ctx->errmsg.len
                                    + sizeof(" " CRLF) - 1;
 
-                    p = ngx_palloc(s->connection->pool, ctx->err.len);
+                    p = ngx_pnalloc(s->connection->pool, ctx->err.len);
                     if (p == NULL) {
                         ngx_close_connection(ctx->peer.connection);
                         ngx_destroy_pool(ctx->pool);
@@ -719,7 +720,7 @@ ngx_mail_auth_http_process_headers(ngx_m
                     return;
                 }
 
-                ngx_add_timer(s->connection->read, timer * 1000);
+                ngx_add_timer(s->connection->read, (ngx_msec_t) (timer * 1000));
 
                 s->connection->read->handler = ngx_mail_auth_sleep_handler;
 
@@ -736,7 +737,7 @@ ngx_mail_auth_http_process_headers(ngx_m
                     return;
                 }
 
-                ngx_add_timer(s->connection->read, timer * 1000);
+                ngx_add_timer(s->connection->read, (ngx_msec_t) (timer * 1000));
 
                 s->connection->read->handler = ngx_mail_auth_sleep_handler;
 
@@ -811,7 +812,7 @@ ngx_mail_auth_http_process_headers(ngx_m
 
             peer->name.len = len;
 
-            peer->name.data = ngx_palloc(s->connection->pool, len);
+            peer->name.data = ngx_pnalloc(s->connection->pool, len);
             if (peer->name.data == NULL) {
                 ngx_destroy_pool(ctx->pool);
                 ngx_mail_session_internal_server_error(s);
@@ -1280,7 +1281,7 @@ ngx_mail_auth_http_escape(ngx_pool_t *po
 
     escaped->len = text->len + n * 2;
 
-    p = ngx_palloc(pool, escaped->len);
+    p = ngx_pnalloc(pool, escaped->len);
     if (p == NULL) {
         return NGX_ERROR;
     }
@@ -1351,7 +1352,7 @@ ngx_mail_auth_http_merge_conf(ngx_conf_t
             len += header[i].key.len + 2 + header[i].value.len + 2;
         }
 
-        p = ngx_palloc(cf->pool, len);
+        p = ngx_pnalloc(cf->pool, len);
         if (p == NULL) {
             return NGX_CONF_ERROR;
         }
@@ -1393,7 +1394,7 @@ ngx_mail_auth_http(ngx_conf_t *cf, ngx_c
         u.url.data += 7;
     }
 
-    if (ngx_parse_url(cf, &u) != NGX_OK) {
+    if (ngx_parse_url(cf->pool, &u) != NGX_OK) {
         if (u.err) {
             ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
                                "%s in auth_http \"%V\"", u.err, &u.url);