Hi @david--garcia  Thanks very much for your response, it was very helpful. We seem to have about a 3 hour delay between contactdate and the first eventdate. Once the events start sending they take about an hour to delivery (50k emails) which is fine. I am trying to understand why there is a 3 hour ...

Hi All, I am trying to understand which date field relates to when an email starts to send. I always use contact date but if I understand correctly this is more when the email is scheduled to send rather than when it actually starts.  I need to do some analysis on open/click rates for when emails ar...