Email marketing required -- 2

I have a database of 100,000 users to whom I need to send emails. This is an excel sheet with email ID and the respective user name. I want to send the emails to the users such that each email must address the user with their name. The email is just a normal text and there is no attachment. The emails must be sent such that no email must be ended up with a SPAM. It must be noted that I have a total of 5 email IDs from my own domain but these are no more than 1 month old. If I send emails from my own email ID (more than 50 emails a day) these emails eventually go to the SPAM. I need to send 5000 emails/day from any of the email accounts such that the recipient can see the 'received from email ID' of my choice and none of them are ended-up in SPAM.