That's all that's really necessary. Does anyone need a daily update on their pack? If so, you mother fuckas is too needy.
Send email with what you want.
Get reply.
Send email to confirm payment/give shipping info.
Get reply. (some sources may not even confirm).
Wait patiently. Two weeks goes by? Raise a stink.
Beyond that, sources don't want to hold a customer's hand and sure don't want to talk about the weather. Meso sources have many customers, not all of them participate, so it's far more than just the dudes in the thread. Keep all that in mind.