Meal train question

MagickalNarwhal

We are expecting baby #2 in a month and my cousin really really wants to do a meal train for us. She is not in my social circle so she is asking me to get her everyone's email address. Last time we had SO many people bring a meal by and I was so grateful and thrilled, but I feel weird and presumptuous sending her people's emails (basically signing them up to do it, even though the email would be mega no-pressure/completely optional). Not sure how to go about this. She offered to post on my FB wall but no one would see it unless they go right to my page, which no one does. I have a very disparate social group so people wouldn't share it by word of mouth.

Do I just wait until people ask?