Problem sending EMail

[Pankaj Garg]

Hi All, I am using the following code to send EMail

Public Function SendmailUsingSmtpClient(ByVal destinationEmail As List(Of String), ByVal subject As String, ByVal body As String) As Boolean ', ByVal pblnNotify As Boolean) As Boolean
'Dim Email As New System.Net.Mail.MailMessage
Dim mailClient As SmtpClient = Nothing
' Dim smtp As New System.Net.Mail.SmtpClient(BLLmdlCommon.SmtpServer, BLLmdlCommon.SmtpServerPort)
Dim cred As NetworkCredential = Nothing
Dim smtpserver As String = ""
Dim SendPassword As String = ""
Dim fromMail As String = ""
Dim smptServerPort As String = ""
Dim SendUserName As String = ""
Try
SendPassword = System.Configuration.ConfigurationManager.AppSettings("fromemailpassword").ToString()
fromMail = System.Configuration.ConfigurationManager.AppSettings("FromEmail").ToString()
smtpserver = System.Configuration.ConfigurationManager.AppSettings("smtpserver").ToString()
smptServerPort = System.Configuration.ConfigurationManager.AppSettings("SmtpServerPort").ToString()

        mailClient = New SmtpClient(smtpserver, smptServerPort)
        '  mailClient.EnableSsl = True
        mailClient.DeliveryMethod = SmtpDeliveryMethod.PickupDirectoryFromIis
        mailClient.UseDefaultCredentials = False
        cred = New NetworkCredential(fromMail, SendPassword)
        mailClient.Credentials = cred
        For i As Integer = 0 To destinationEmail.Count - 1
            mailClient.Send(fromMail, destinationEmail(i), subject, body)
        Next
        Return True
    Catch ex As Exception
        Throw ex
        Return False
    End Try
End Function

It is working fine at local. When i check at production server, it is crashing, Cannot get IIS pickup directory Can you tell me something , Whay should i do to get rid of this problem? Thanks