Frequently, we send the same email in different batches at different times of thesame day and would like to be able to identify those leads that were sent the email not only by date sent but the time range in which it was sent. On the first day or two, you can get this by using both the Was Sent Email and Not Was Sent Email filters and adding a Date of Activity constraint to one of them with the "in past xxx hours" constraint , but this becomes unmanageable after a few days as you need to calculate the number of hours over days, weeks or months.
Please add the ability to specify Timein conjunction with the Date of Activity constraint for the Was Sent Email filter, Not Was Sent Email filter and other email filters.
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