public int EmailForInvitation(InvitePeople people)
        {
            int user = _signup.GetId(people.Email);
            List <Projectmembers> member = _Projectmembers.getMemberDetails(user);

            foreach (var memberdetail in member)
            {
                if (memberdetail.ProjectId.ToString() == people.ProjectId)
                {
                    return(0);
                }
            }
            var message = new MimeMessage();

            message.From.Add(new MailboxAddress(_config["EmailConfig:Title"], _config["EmailConfig:FromEmail"])); //mail title and mail from(Email)
            message.To.Add(new MailboxAddress(people.Email));                                                     //mail to(client)
            message.Subject = _config["EmailConfig:SubjectForInvitation"];                                        //mail subject
            var bodyBuilder = new BodyBuilder();

            //body of the mail
            if (user != 0)
            {
                bodyBuilder.HtmlBody = "Click here to join project-  http://localhost:4200/app-signup/" + people.ProjectId; //link sent in mail
            }
            else
            {
                bodyBuilder.HtmlBody = "Click here to join project-  http://localhost:4200/app-register/" + people.ProjectId; //link sent in mail
            }
            message.Body = bodyBuilder.ToMessageBody();

            using (var client = new SmtpClient())
            {
                //required field for email
                client.Connect(_config["EmailConfig:Domain"], 587, false);
                client.Authenticate(_config["EmailConfig:FromEmail"], _config["EmailConfig:Password"]);
                client.Send(message);
                client.Disconnect(true);
            }
            return(1);
        }