I would like to send out 1600 emails at once to let some clients know that i have a new website, and i plan on using Gmail to do so. I know that Gmail limits it to 500 emails per 24 hours. That means i will have to split it up into 3 days. Is using Gmail a good idea, or will many of the recipients automatically filter my Gmail Email into their Spam box, because Gmail is known for spamming...? Or is it a better idea to use Constant Contact for not getting caught in someone's spam folder ?