Outlook Wait a few seconds then execute

Try:

Sub printradu(Item As Outlook.MailItem)
    'Wait 10 seconds then execute the code below:
    Application.Wait(Now + TimeValue("0:00:10"))
    MessageAndAttachmentProcessor Item, True
End Sub

Or:

Public Declare Sub Sleep Lib "kernel32" (ByVal dwMilliseconds As Long)
Sub printradu(Item As Outlook.MailItem)
    'Wait 10 seconds then execute the code below:
    Sleep(10000)
    MessageAndAttachmentProcessor Item, True
End Sub

Or:

Sub printradu(Item As Outlook.MailItem)
    'Wait 10 seconds then execute the code below:
    Threading.thread.sleep(10000)
    MessageAndAttachmentProcessor Item, True
End Sub

This worked for me in Outlook 2013 VBA (for some reason I had to include "outlook." before the "Application.Wait"):

Outlook.Application.Wait (Now + TimeValue("0:00:5"))