diff --git a/framework/src/Volo.Abp.Ddd.Domain/Volo/Abp/Domain/Repositories/RepositoryExtensions.cs b/framework/src/Volo.Abp.Ddd.Domain/Volo/Abp/Domain/Repositories/RepositoryExtensions.cs
index 029ee5cd3c..40ebca015e 100644
--- a/framework/src/Volo.Abp.Ddd.Domain/Volo/Abp/Domain/Repositories/RepositoryExtensions.cs
+++ b/framework/src/Volo.Abp.Ddd.Domain/Volo/Abp/Domain/Repositories/RepositoryExtensions.cs
@@ -5,7 +5,6 @@ using System.Threading;
 using System.Threading.Tasks;
 using Volo.Abp.Domain.Entities;
 using Volo.Abp.DynamicProxy;
-using Volo.Abp.Threading;
 
 namespace Volo.Abp.Domain.Repositories
 {
@@ -27,17 +26,6 @@ namespace Volo.Abp.Domain.Repositories
             }
         }
 
-        public static void EnsureCollectionLoaded<TEntity, TKey, TProperty>(
-            this IBasicRepository<TEntity, TKey> repository,
-            TEntity entity,
-            Expression<Func<TEntity, IEnumerable<TProperty>>> propertyExpression
-        )
-            where TEntity : class, IEntity<TKey>
-            where TProperty : class
-        {
-            AsyncHelper.RunSync(() => repository.EnsureCollectionLoadedAsync(entity, propertyExpression));
-        }
-
         public static async Task EnsurePropertyLoadedAsync<TEntity, TKey, TProperty>(
             this IBasicRepository<TEntity, TKey> repository,
             TEntity entity,
@@ -53,16 +41,5 @@ namespace Volo.Abp.Domain.Repositories
                 await repo.EnsurePropertyLoadedAsync(entity, propertyExpression, cancellationToken);
             }
         }
-
-        public static void EnsurePropertyLoaded<TEntity, TKey, TProperty>(
-            this IBasicRepository<TEntity, TKey> repository,
-            TEntity entity,
-            Expression<Func<TEntity, TProperty>> propertyExpression
-        )
-            where TEntity : class, IEntity<TKey>
-            where TProperty : class
-        {
-            AsyncHelper.RunSync(() => repository.EnsurePropertyLoadedAsync(entity, propertyExpression));
-        }
     }
 }
diff --git a/framework/src/Volo.Abp.Emailing/Volo/Abp/Emailing/BackgroundEmailSendingJob.cs b/framework/src/Volo.Abp.Emailing/Volo/Abp/Emailing/BackgroundEmailSendingJob.cs
index 6aca2403cc..f471fecaa1 100644
--- a/framework/src/Volo.Abp.Emailing/Volo/Abp/Emailing/BackgroundEmailSendingJob.cs
+++ b/framework/src/Volo.Abp.Emailing/Volo/Abp/Emailing/BackgroundEmailSendingJob.cs
@@ -1,5 +1,6 @@
 using Volo.Abp.BackgroundJobs;
 using Volo.Abp.DependencyInjection;
+using Volo.Abp.Threading;
 
 namespace Volo.Abp.Emailing
 {
@@ -14,7 +15,7 @@ namespace Volo.Abp.Emailing
 
         public override void Execute(BackgroundEmailSendingJobArgs args)
         {
-            EmailSender.Send(args.To, args.Subject, args.Body, args.IsBodyHtml);
+            AsyncHelper.RunSync(() => EmailSender.SendAsync(args.To, args.Subject, args.Body, args.IsBodyHtml));
         }
     }
 }
\ No newline at end of file
diff --git a/framework/src/Volo.Abp.Emailing/Volo/Abp/Emailing/EmailSenderBase.cs b/framework/src/Volo.Abp.Emailing/Volo/Abp/Emailing/EmailSenderBase.cs
index 8ae737043b..a3b085a27c 100644
--- a/framework/src/Volo.Abp.Emailing/Volo/Abp/Emailing/EmailSenderBase.cs
+++ b/framework/src/Volo.Abp.Emailing/Volo/Abp/Emailing/EmailSenderBase.cs
@@ -3,7 +3,6 @@ using System.Net.Mail;
 using System.Text;
 using System.Threading.Tasks;
 using Volo.Abp.BackgroundJobs;
-using Volo.Abp.Threading;
 
 namespace Volo.Abp.Emailing
 {
@@ -36,27 +35,11 @@ namespace Volo.Abp.Emailing
             });
         }
 
-        public virtual void Send(string to, string subject, string body, bool isBodyHtml = true)
-        {
-            Send(new MailMessage
-            {
-                To = { to },
-                Subject = subject,
-                Body = body,
-                IsBodyHtml = isBodyHtml
-            });
-        }
-
         public virtual async Task SendAsync(string from, string to, string subject, string body, bool isBodyHtml = true)
         {
             await SendAsync(new MailMessage(from, to, subject, body) { IsBodyHtml = isBodyHtml });
         }
 
-        public virtual void Send(string from, string to, string subject, string body, bool isBodyHtml = true)
-        {
-            Send(new MailMessage(from, to, subject, body) { IsBodyHtml = isBodyHtml });
-        }
-
         public virtual async Task SendAsync(MailMessage mail, bool normalize = true)
         {
             if (normalize)
@@ -86,16 +69,6 @@ namespace Volo.Abp.Emailing
             );
         }
 
-        public virtual void Send(MailMessage mail, bool normalize = true)
-        {
-            if (normalize)
-            {
-                AsyncHelper.RunSync(() => NormalizeMailAsync(mail));
-            }
-
-            SendEmail(mail);
-        }
-
         /// <summary>
         /// Should implement this method to send email in derived classes.
         /// </summary>
diff --git a/framework/src/Volo.Abp.Emailing/Volo/Abp/Emailing/IEmailSender.cs b/framework/src/Volo.Abp.Emailing/Volo/Abp/Emailing/IEmailSender.cs
index 999469ce0c..612d8f078c 100644
--- a/framework/src/Volo.Abp.Emailing/Volo/Abp/Emailing/IEmailSender.cs
+++ b/framework/src/Volo.Abp.Emailing/Volo/Abp/Emailing/IEmailSender.cs
@@ -13,31 +13,11 @@ namespace Volo.Abp.Emailing
         /// </summary>
         Task SendAsync(string to, string subject, string body, bool isBodyHtml = true);
 
-        /// <summary>
-        /// Sends an email.
-        /// </summary>
-        void Send(string to, string subject, string body, bool isBodyHtml = true);
-
         /// <summary>
         /// Sends an email.
         /// </summary>
         Task SendAsync(string from, string to, string subject, string body, bool isBodyHtml = true);
 
-        /// <summary>
-        /// Sends an email.
-        /// </summary>
-        void Send(string from, string to, string subject, string body, bool isBodyHtml = true);
-
-        /// <summary>
-        /// Sends an email.
-        /// </summary>
-        /// <param name="mail">Mail to be sent</param>
-        /// <param name="normalize">
-        /// Should normalize email?
-        /// If true, it sets sender address/name if it's not set before and makes mail encoding UTF-8. 
-        /// </param>
-        void Send(MailMessage mail, bool normalize = true);
-
         /// <summary>
         /// Sends an email.
         /// </summary>