Now mail providers block new IP addresses if a large number of letters suddenly starts coming from them. They perceive you as a spammer. To do bulk mailings, a domain must have a good reputation, and it takes time to earn it.
In this regard, it is better to limit the speed of sending letters at the initial stage. We recommend starting with about 200-300 emails a day. If you are just starting to gain a base of your subscribers, then this speed will be quite enough for you at the initial stage.
But if you want to pick up speed quickly enough, then the gradual set of the subscriber base can be accelerated by warming up the domain.
How long it takes to warm up is a very controversial issue and depends on many factors.For example, if your domain or mailbox is brand new, it is recommended to warm up for at least 2 months and reach the maximum possible limits for sending emails per day, which will greatly help in your future cold mailings to a large number of recipients.
If your domain is not new, then achieving good results will depend on your current reputation, which you can periodically check with the help of various postmasters that will show the open rate of your emails. It can take 2-3 weeks or several months if the reputation is completely bad.
It is also worth mentioning that if you regularly run campaigns and cold emails, it is strongly recommended not to abandon the warm-up process at all so that your reputation is always kept at a good level. Maintaining good results is much easier than trying to "resurrect" your domain later.
Domain warming up is an artificial increase in the reputation of your domain by sending messages to your mailboxes, then opening them and clicking on links. It is difficult, time-consuming, and painstaking to do it manually.
Now there are many programs that do this automatically. Among them is our warm-up tool. This method is very convenient and quite fast. We have a free period during which you can test our service and see the results.