The bad news is that it won’t necessarily fool anyone and can quickly be identified.
For example, let’s say you were meant to submit a term paper or piece of work by a given date and you missed it by a few days.
Hit the "Save" button if Gmail hasn't already "autosaved" the draft.
Robert Schrader is a writer, photographer, world traveler and creator of the award-winning blog Leave Your Daily Hell.
If the former then you could, would be a funny project.
note- I don't recall if the spam one I got was a future one that stuck as new, or a past one that stuck as the first email. Barlop said "But the email client used the funny one." I've seen Thunderbird do just that -- display the date/time from the sender's system -- but Gmail on the web, as well as many other sites, don't use the same header field.
Email is now regarded as legally binding and one of the reasons for that is the ability to track the real time and date of transmission as well as the sender and the email contents.
So unfortunately, if you missed a deadline sending an email with a previous date just isn’t going to work.
If I set the system time of my computer to a datetime in the past and send an email then the recipient will see that time as send-date-time. With the spam emails with false dates, I don't recall the year but I think it may have been a very early year, so as to get to be my allegedly oldest emails(thus having some strange prominence).
The easiest way to send an email with a previous date is to change your PC clock to the time you are trying to simulate.
If you look at the metadata of an email, it will show the time and date the email was sent from the senders server, the time it was received at the recipients email server and possibly the time it was scanned for malware too.
Send a Gmail message with a different date and time if you want to create a message now but don't want to send it until later.
Gmail's "Drafts" feature allows you to compose and format an email, but save it and send it at a later date rather than at the present moment.