diff --git a/IRaCIS.Core.Application/Service/Common/MailService.cs b/IRaCIS.Core.Application/Service/Common/MailService.cs
index fab8dd58f..ef2839944 100644
--- a/IRaCIS.Core.Application/Service/Common/MailService.cs
+++ b/IRaCIS.Core.Application/Service/Common/MailService.cs
@@ -18,6 +18,9 @@ using IRaCIS.Core.Domain.Models;
 using DocumentFormat.OpenXml.Office2013.Excel;
 using IRaCIS.Core.Application.Contracts;
 using DocumentFormat.OpenXml.Vml;
+using System.Net.Mail;
+using IP2Region.Net.XDB;
+using NPOI.SS.Formula.Eval;
 
 namespace IRaCIS.Application.Services
 {
@@ -728,6 +731,142 @@ namespace IRaCIS.Application.Services
         }
 
 
+        //用户反馈邮件
 
+        public async Task UserFeedBack(Guid feedBackId)
+        {
+            var feedBack = await _repository.Where<UserFeedBack>(t => t.Id == feedBackId).Include(t => t.CreateUser).ThenInclude(t => t.UserTypeRole).FirstNotNullAsync();
+
+            var messageToSend = new MimeMessage();
+            //发件地址
+            messageToSend.From.Add(new MailboxAddress(_systemEmailConfig.FromName, _systemEmailConfig.FromEmail));
+
+            var isHaveTrialId = feedBack.TrialId != null;
+
+            var companyName = _userInfo.IsEn_Us ? _systemEmailConfig.CompanyShortName : _systemEmailConfig.CompanyShortNameCN;
+
+
+            var emailList = await _repository.Where<User>(t => t.UserTypeEnum == UserTypeEnum.Admin || t.UserTypeEnum == UserTypeEnum.ZYSS ||
+             (isHaveTrialId ? t.UserTrials.Any(t => t.User.UserTypeEnum == UserTypeEnum.ProjectManager && t.TrialId == feedBack.TrialId) : true)).Select(t => new { t.EMail, t.UserTypeEnum, t.FullName }).ToListAsync();
+
+
+            //影像阅片反馈 pm
+            if (feedBack.VisitTaskId != null)
+            {
+                foreach (var email in emailList)
+                {
+                    if (email.UserTypeEnum == UserTypeEnum.ProjectManager)
+                    {
+                        //收件地址
+                        messageToSend.To.Add(new MailboxAddress(email.FullName, email.EMail));
+                    }
+                }
+
+                var userNames = string.Join(',', emailList.Where(email => email.UserTypeEnum == UserTypeEnum.ProjectManager).Select(t => t.FullName));
+
+                var emailType = await _repository.Where<Dictionary>(t => t.Parent.Code == "Email_BusinessScenario" && t.ParentId != null && t.Code == ((int)EmailBusinessScenario.UserResetEmail).ToString()).Select(t => _userInfo.IsEn_Us ? t.Value : t.ValueCN).FirstOrDefaultAsync();
+
+
+                var info = await _repository.Where<VisitTask>(t => t.Id == feedBack.VisitTaskId).Select(t => new { t.Trial.ResearchProgramNo, t.Trial.TrialCode, SubejctCode = t.Subject.Code, t.SourceSubjectVisit.VisitName }).FirstNotNullAsync();
+
+                Func<(string topicStr, string htmlBodyStr), (string topicStr, string htmlBodyStr)> emailConfigFunc = input =>
+                {
+                    var topicStr = string.Format(input.topicStr, info.SubejctCode, info.VisitName, info.ResearchProgramNo);
+
+                    var htmlBodyStr = string.Format(ReplaceCompanyName(input.htmlBodyStr),
+                         userNames,
+                        info.TrialCode,
+                        info.SubejctCode,
+                        info.VisitName,
+                        feedBack.CreateUser.UserTypeRole.UserTypeShortName,
+                         feedBack.CreateUser.FullName,
+                         emailType,
+                         feedBack.QuestionDescription,
+                         _systemEmailConfig.SiteUrl
+                        );
+
+                    return (topicStr, htmlBodyStr);
+                };
+
+
+                messageToSend = await GetEmailSubejctAndHtmlInfoAndBuildAsync(EmailBusinessScenario.UserResetEmail, messageToSend, emailConfigFunc);
+
+            }
+            //项目相关的反馈  pm  admin
+            else if (feedBack.TrialId != null)
+            {
+                foreach (var email in emailList)
+                {
+                    if (email.UserTypeEnum == UserTypeEnum.ProjectManager || email.UserTypeEnum == UserTypeEnum.Admin)
+                    {
+                        //收件地址
+                        messageToSend.To.Add(new MailboxAddress(email.FullName, email.EMail));
+                    }
+                }
+
+                var userNames = string.Join(',', emailList.Where(email => email.UserTypeEnum == UserTypeEnum.ProjectManager || email.UserTypeEnum == UserTypeEnum.Admin).Select(t => t.FullName));
+
+                var emailType = await _repository.Where<Dictionary>(t => t.Parent.Code == "Email_BusinessScenario" && t.ParentId != null && t.Code == ((int)EmailBusinessScenario.UserResetEmail).ToString()).Select(t => _userInfo.IsEn_Us ? t.Value : t.ValueCN).FirstOrDefaultAsync();
+
+
+                var info = await _repository.Where<Trial>(t => t.Id == feedBack.TrialId).Select(t => new { t.ResearchProgramNo, t.TrialCode }).FirstNotNullAsync();
+
+                Func<(string topicStr, string htmlBodyStr), (string topicStr, string htmlBodyStr)> emailConfigFunc = input =>
+                {
+                    var topicStr = string.Format(input.topicStr, info.ResearchProgramNo);
+
+                    var htmlBodyStr = string.Format(ReplaceCompanyName(input.htmlBodyStr),
+                       userNames,
+                        info.TrialCode,
+                        feedBack.CreateUser.UserTypeRole.UserTypeShortName,
+                         feedBack.CreateUser.FullName,
+                         emailType,
+                         feedBack.QuestionDescription,
+                         _systemEmailConfig.SiteUrl
+                        );
+
+                    return (topicStr, htmlBodyStr);
+                };
+
+
+                messageToSend = await GetEmailSubejctAndHtmlInfoAndBuildAsync(EmailBusinessScenario.UserResetEmail, messageToSend, emailConfigFunc);
+
+            }
+            //项目无关的反馈  admin  zyss
+            else
+            {
+                foreach (var email in emailList)
+                {
+                    if (email.UserTypeEnum == UserTypeEnum.ZYSS || email.UserTypeEnum == UserTypeEnum.Admin)
+                    {
+                        //收件地址
+                        messageToSend.To.Add(new MailboxAddress(email.FullName, email.EMail));
+                    }
+                }
+
+                var userNames = string.Join(',', emailList.Where(email => email.UserTypeEnum == UserTypeEnum.ZYSS || email.UserTypeEnum == UserTypeEnum.Admin).Select(t => t.FullName));
+
+                Func<(string topicStr, string htmlBodyStr), (string topicStr, string htmlBodyStr)> emailConfigFunc = input =>
+                {
+                    var topicStr = string.Format(input.topicStr);
+
+                    var htmlBodyStr = string.Format(ReplaceCompanyName(input.htmlBodyStr),
+                        userNames,
+                        feedBack.CreateUser.UserTypeRole.UserTypeShortName,
+                         feedBack.CreateUser.FullName,
+                         feedBack.QuestionDescription,
+                         _systemEmailConfig.SiteUrl
+                        );
+
+                    return (topicStr, htmlBodyStr);
+                };
+
+
+                messageToSend = await GetEmailSubejctAndHtmlInfoAndBuildAsync(EmailBusinessScenario.UserResetEmail, messageToSend, emailConfigFunc);
+            }
+
+            await SendEmailHelper.SendEmailAsync(messageToSend, _systemEmailConfig);
+
+        }
     }
 }
diff --git a/IRaCIS.Core.Application/Service/Management/DTO/UserFeedBackViewModel.cs b/IRaCIS.Core.Application/Service/Management/DTO/UserFeedBackViewModel.cs
index 51bc992bb..a83c28ba2 100644
--- a/IRaCIS.Core.Application/Service/Management/DTO/UserFeedBackViewModel.cs
+++ b/IRaCIS.Core.Application/Service/Management/DTO/UserFeedBackViewModel.cs
@@ -85,8 +85,7 @@ namespace IRaCIS.Core.Application.ViewModel
         public int State { get; set; }
         public Guid? TrialSiteId { get; set; }
 
-        [NotDefault]
-        public Guid TrialId { get; set; }
+        public Guid? TrialId { get; set; }
 
         public Guid? VisitTaskId { get; set; }
 
diff --git a/IRaCIS.Core.Domain/Management/UserFeedBack.cs b/IRaCIS.Core.Domain/Management/UserFeedBack.cs
index 999a4c04e..a9674c176 100644
--- a/IRaCIS.Core.Domain/Management/UserFeedBack.cs
+++ b/IRaCIS.Core.Domain/Management/UserFeedBack.cs
@@ -62,7 +62,7 @@ namespace IRaCIS.Core.Domain.Models
         public Guid? TrialSiteId { get; set; }
 
 
-        public Guid TrialId { get; set; }
+        public Guid? TrialId { get; set; }
 
         public string ScreenshotListStr { get; set; }