IP warm-up
Sending a small amount of email from a new IP address or domain at first, and increasing it gradually, so mailbox providers learn to trust it.
How this affects you
A new domain needs warming up too. In Vaartix, daily limits on a new account start low and grow with a clean sending history. If you move a large volume from another service, move it in steps rather than all at once. A new dedicated IP has no history and needs a warm-up over several weeks.
Learn more
Vaartix is a transactional email API built in India. SPF, DKIM and a return path on your domain are set up for you, and every feature is free during the private beta.