Automatic IP warmup – the power of the Instrument to enhance the sending volume gradually for focused IPs. The listing of URIs for receivers to ship XML feed-back to. Observe: It's not a summary of email addresses, as DMARC needs a listing of URIs of the form “mailto:tackle@case in point.org”. https://emailcampaign13659.techionblog.com/26982972/email-deliverability-can-be-fun-for-anyone