I am using the following code to try and send a workbook via attachment to multiple email recipients however it will not work. If I only include one recipient then the code runs fine however it crashes when there is more than one.

I get runtime error '1004': Unknown recipient name found in recipient list. Use a valid name and try again.

Is anyone able to help me?

Sub Mail_Workbook_1()
Dim myFile As String
Dim myMsg As String
Dim myEmail As String 'MsgBox ActiveWorkbook.Name
myFile = ActiveWorkbook.Name
myMsg = "Submitted sheet"
myEmail = "aa@bc.org.uk;bb@bc.org.uk"
Application.Workbooks(myFile).SendMail myEmail, myMsg, False
End Sub