sx.inblock.ptrend = inbuffer;
sx.inblock.cctx = cctx;
if(!smtp_read_response(&sx, responsebuffer, sizeof(responsebuffer), expect, timeout))
sx.inblock.ptrend = inbuffer;
sx.inblock.cctx = cctx;
if(!smtp_read_response(&sx, responsebuffer, sizeof(responsebuffer), expect, timeout))