Statistically speaking, you should not send newsletters in the middle of the week or in the afternoon.
At these times the open rates are 1.5 times lower than on Mondays, Fridays or weekends. The best times to send newsletters are in the morning between 8-11am, or in the evening between 6-9pm. In the B2C industry it makes sense to send newsletters at weekends. In this case, the best open- and click rates occur in the early afternoon.
These figures are just an indication. Every recipient group has its own characteristics and preferences. For this reason, you should test to see which dispatch times yield optimum results with your recipients. The easiest way to do this is with Newsletter2Go’s scheduling function and comprehensive statistics.