Orchard/src/Orchard.Web/Modules/Orchard.Email/Models/SmtpSettingsPart.cs

using System.ComponentModel;
using System.Configuration;
using System.Net.Configuration;
using System.Net.Mail;
using Orchard.ContentManagement;
using System;
using Orchard.ContentManagement.Utilities;

namespace Orchard.Email.Models {
    public class SmtpSettingsPart : ContentPart {
        private readonly ComputedField<string> _password = new ComputedField<string>();

        public ComputedField<string> PasswordField {
            get { return _password; }
        }

        public string Address {
            get { return this.Retrieve(x => x.Address); }
            set { this.Store(x => x.Address, value); }
        }

        public string Host {
            get { return this.Retrieve(x => x.Host); }
            set { this.Store(x => x.Host, value); }
        }

        public int Port {
            get { return this.Retrieve(x => x.Port, 25); }
            set { this.Store(x => x.Port, value); }
        }

        public bool EnableSsl {
            get { return this.Retrieve(x => x.EnableSsl); }
            set { this.Store(x => x.EnableSsl, value); }
        }

        public bool RequireCredentials {
            get { return this.Retrieve(x => x.RequireCredentials); }
            set { this.Store(x => x.RequireCredentials, value); }
        }

        public string UserName {
            get { return this.Retrieve(x => x.UserName); }
            set { this.Store(x => x.UserName, value); }
        }

        public string Password {
            get { return _password.Value; }
            set { _password.Value = value; }
        }

        public bool IsValid() {
            var section = (SmtpSection)ConfigurationManager.GetSection("system.net/mailSettings/smtp");
            if (section != null && !String.IsNullOrWhiteSpace(section.Network.Host)) {
                return true;
            }

            // establish if the settings are defined in the web.config file
            var smtpClient = new SmtpClient();

            if (String.IsNullOrWhiteSpace(Address)) {
                return false;
            }

            if (!String.IsNullOrWhiteSpace(Host) && Port == 0) {
                return false;
            }

            return true;
        }
    }
}