diff --git a/src/app-layer-smtp.c b/src/app-layer-smtp.c index 0c161edb59..cd0a732e1e 100644 --- a/src/app-layer-smtp.c +++ b/src/app-layer-smtp.c @@ -879,7 +879,12 @@ static int SMTPProcessReply(SMTPState *state, Flow *f, if (state->cmds_idx == state->cmds_cnt) { if (!(state->parser_state & SMTP_PARSER_STATE_FIRST_REPLY_SEEN)) { - state->parser_state |= SMTP_PARSER_STATE_FIRST_REPLY_SEEN; + /* the first server reply can be a multiline message. Let's + * flag the fact that we have seen the first reply only at the end + * of a multiline reply + */ + if (!(state->parser_state & SMTP_PARSER_STATE_PARSING_MULTILINE_REPLY)) + state->parser_state |= SMTP_PARSER_STATE_FIRST_REPLY_SEEN; if (reply_code == SMTP_REPLY_220) SCReturnInt(0); else