Editing a message pre sending makes it unsendable

[Begadoc]

In recent weeks I have come across numerous occasions when I have prepared an email but saved it as a draft pending a need to edit, but after reloading it and making edits, I get a message along the lines of "Unable to send as this message has been edited". I then have to copy and paste the message into a new one before I can send it.
I never had this problem before so something must have changed in the program.

[gmayor]

The message may be new (though I haven't seen it) but the problem with editing messages in the outbox resulting in the message not being sent is by no means a new one. It is however easily resolved with a macro. Add this macro to the ribbon and use it to resend the messages in the Outbox then res-synch the messages.

Option Explicit
Sub SendAndReceiveAll()
Dim olNS As NameSpace
Dim olSyncs As SyncObjects
Dim olSync As SyncObject
Dim olItems As Items
Dim olItem As Object
Dim i As Long

    Set olNS = Application.GetNamespace("MAPI")
    Set olSyncs = olNS.SyncObjects
    Set olItems = olNS.GetDefaultFolder(4).Items
    For i = olItems.Count To 1 Step -1
        Set olItem = olItems(i)
        olItem.Send
        DoEvents
    Next i
    For i = 1 To olSyncs.Count
        Set olSync = olSyncs.Item(i)
        olSync.Start
        DoEvents
    Next
lbl_Exit:
    Set olItems = Nothing
    Set olItem = Nothing
    Set olNS = Nothing
    Set olSyncs = Nothing
    Set olSync = Nothing
    Exit Sub
End Sub

[Moonshine]

Begadoc

This link: Outlook 2016 - Unable to send draft emails - "The operation cannot be performed because the message has changed" might be helpful to you if you use Kasperksy Office Security

https://answers.microsoft.com/en-us/...f-cc591dc675aa