I have code that looks for changes in a master record and then sends email to all users connected with that master record. My problem is I cannot figure out how to implement error handeling. When I try to implement SmtpFailedRecipientException code it breaks. Please help.
Public Shared Sub ProcessActivityEmail()
Dim ds As DataSet = GetUserListForEmail()
Dim ds2 As DataSet
If ds.Tables.Count > 0 Then
Dim mm As System.Net.Mail.MailMessage = New System.Net.Mail.MailMessage()
Dim smtpClient As System.Net.Mail.SmtpClient = New System.Net.Mail.SmtpClient()
Dim body As String = ""
Dim group As String = ""
'Dim fromaddress As String = ConfigurationManager.AppSettings("ServerSendAddress").ToString
For Each dr As DataRow In ds.Tables(0).Rows
ds2 = GetLimitedActivityListForU ...
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