Are d mails possible

You're asking about "d-mails"!

In the context of email, a "d-mail" is a term that has been used to describe a hypothetical type of email that is sent from the future to the past. The idea is that someone in the future could send an email to someone in the past, potentially changing the course of events or altering the timeline.

However, it's important to note that d-mails are purely fictional and not currently possible with our current understanding of time and technology. The concept of sending emails through time is often explored in science fiction, but it's not something that can be done in reality.

In fact, the laws of physics as we currently understand them suggest that it's not possible to send information through time in the way that we can send information through space. The concept of time travel, including sending emails through time, is still purely theoretical and has yet to be proven or observed.

So, while the idea of d-mails might be an interesting concept to explore in science fiction or fantasy, it's not something that we can currently do in the real world.