A: Email warming is something we do within our mail servers without any intervention from you. As your sending domain's reputation increases, so does the mail throughput for campaigns you send. Our best suggestion is to start with smaller campaign audiences and build over time. However, our servers will also do their job to warm email through internal means. As with most ESPs, you can only email contacts who have specifically given your company permission. Purchase, rented, or scrapped lists cannot be used in Tarvent.