As a registered representative, you have suitability obligations whenever you make a recommendation to a customer. A recommendation could involve telling someone to buy a security, to sell a security, or even to hold a security. Therefore, you wouldn't send out a large-group email to 100s of customers telling them to hold securities unless you were sure that was a suitable recommendation for every recipient on the list.
Good news, not telling someone to sell a stock that you once recommended is not the same thing as a "hold" recommendation. A hold recommendation is an explicit recommendation to hang onto a particular securities investment.
Since a "hold" recommendation would not lead to a commission, I can't think of a good reason to send one out. Can you?
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