lmtp: Don't write extra ([]) to Received: line for mails via UNIX socket.

diff --git a/src/lmtp/commands.c b/src/lmtp/commands.c
index 8d8baa0b359fb68334f3a27fd4d4bbc8e807d2ab..b3f288564693c6d5b5512572638e994ad560a654 100644 (file)
--- a/src/lmtp/commands.c
+++ b/src/lmtp/commands.c
@@ -910,7 +910,8 @@ static const char *client_get_added_headers(struct client *client)
        }
 
        str_printfa(str, "Received: from %s", client->lhlo);
-       if ((host = net_ip2addr(&client->remote_ip)) != NULL)
+       host = net_ip2addr(&client->remote_ip);
+       if (host[0] != '\0')
                str_printfa(str, " ([%s])", host);
        str_printfa(str, "\r\n\tby %s ("PACKAGE_NAME") with LMTP id %s",
                    client->my_domain, client->state.session_id);