当我使用下面的代码转到已发送的电子邮件时，它会发送电子邮件的先前版本。它不会重置。
Private Sub CommandButton16_Click()
Dim EmailApp As Outlook.Application
Dim EmailItem As Outlook.MailItem
Set EmailApp = New Outlook.Application
Dim EmailAddress As String
Dim EmpName As String
Dim ProvName As String
Dim PayMonth As String
Dim Filename As String
Dim Filepath As String
Dim FileExists As String
Dim Subject As String
Dim Source As String
Dim AltEmail As String
Dim ExtraMsg As String
Dim i As Long
'Loop through and get email address and names
i = 2
PayMonth = TextBox6.Value
AltEmail = TextBox7.Value
ExtraMsg = TextBox8.Value
Do While Worksheets("Provider Template").Cells(i, 1).Value <> ""
ProvName = Worksheets("Provider Template").Cells(i, 1).Value
EmpName = Worksheets("Provider Template").Cells(i, 11).Value
If AltEmail = "" Then EmailAddress = Worksheets("Provider Template").Cells(i, 20).Value Else EmailAddress = AltEmail
Filename = ProvName & " " & PayMonth
Filepath = ThisWorkbook.Path & "\Remittance PDFs\"
Source = Filepath & Filename & ".pdf"
Subject = "Monthly Remittance Advice for" & " " & ProvName & " - " & PayMonth
FileExists = Dir(Source)
If FileExists = "" Then GoTo Lastline Else GoTo SendEmail
SendEmail:
Set EmailItem = EmailApp.CreateItem(olMailItem)
With EmailItem
EmailItem.To = EmailAddress
EmailItem.CC = "******************"
EmailItem.Subject = Subject
EmailItem.HTMLBody = "<html><body><p>Here is the tax invoice and calculation sheet for " & ProvName & ".</p><p>" & ExtraMsg & "</p><p>Kind regards, ******</p><p>****** ******</p><p>Practice Manager</p></body></html>"
EmailItem.Attachments.Add Source
EmailItem.Send
End With
GoTo Lastline
Lastline:
i = i + 1
Loop
End Sub
我认为这是代码中的问题，然后我在另一台机器上运行它并发送了新的电子邮件。我将更新的版本上传到工作机器，旧的电子邮件又会再次出现，就像在某个地方有这些东西的缓存一样。
下次您可以尝试在 Outlook 中检查“已发送”框。 Outlook 可能没有发送它们（离线或其他原因），它们仍然作为草稿存在。这可能就是他们后来发送的原因。
并调整：
With EmailItem .To = EmailAddressGoTo Lastline Lastline: