Being notable identity of email sender, IP holds key importance in better email delivery. IP warming follows a procedure of recommended practices, when the IP is new and have no reputation across major ISPs.
When the IPs are New
When you setup a new server with new IPs, you need to follow the gradual process of IP warming in order to ensure reputation as a legitimate email sender. ISPs evaluate the amount and the nature of traffic coming from the new IP. The more you follow the process and mindfully control sending volumes, the better reputation you will establish during the observation period of ISPs. After the sending volumes, the second important things is the email list, always send at the hygienic list consists on current email inboxes of major ISPs (Gmail, Yahoo, Hotmail, AOL), ideal is to use email list of opt-in subscribers.
What ISPs Observer?
Before establishing the reputation of some IP as legitimate email sender, ISPs take note of particular factors. The volume of traffic from the IP is the basic therefore don't execute large email campaigns during IP warming, begin with moderate or even low email volumes. ISPs do not only take note of your sending routine, but also recipient behavior with the emails you have sent. Sending out of permission emails or getting high bounce rate against the sent campaigns can destroy the sending reputation of your IPs, before it actually starts building.
We at Email Server Management
We are already offering IP warming services to the vast range of our clients, for whom we have setup and configured email servers. But our services are not limited, and anyone can avail our service who wants his/her IP to get well warmed for the best email delivery and high inbox rate. We only warm up the clean IP and for that we always evaluate the history of IP, if the history of IP doesn't meet our criteria we don't process it for warming up. Our team distributes the email volumes mindfully and sends to the most active recipients. Before executing email campaigns, we always send test email to make sure if all configuration measures including email authentications are working appropriately. We steadily increase the email volume with mounting IP reputation. As soon as major ISPs conclude the reputation of the IP as legitimate email sender and observe positive activity on recipient's end, we provide IP reputation report and the future recommendations.