First thing’s first: Make sure your emailing setup is taken care of.
First, we must make a distinction between types of emails you will be sending. This is important because the health of the IP addresses that you are sending from determine the crowd that ESPs recognizes you as being a part of. When you send password reset messages or announcements about accounts, these messages should be on separate, dedicated IPs because those that you send to affect the health of each IP.
Read more