> some users still use disposable mails If you are just some random service (good odds that you are, especially if you're new) people are not going to trust yo

> some users still use disposable mails If you are just some random service (good odds that you are, especially if you're new) people are not going to trust you with a persistent address. I would go so far as to say that the folks using them would not be interested in giving you "feedback" or receiving "updates" (which when unasked for I would certainly mark as spam).