How to know if an email was sent with a delay?

... the safest way is to call the sender to ask the question!

Retirement is great! Especially in the West Indies...
Raymond (INSA, AFPA)

On Outlook, thank you, there used to be a way in the source, but now this feature is no longer in source.

Hello

If you're using Gmail, it's simple, just:

- open the received email

- click on the three vertical dots located to the right of the email content

- select "Show original"

The email's code will be displayed, along with whether it was sent as scheduled or not.

Hello.

I don't think it's feasible ...

But since you haven't even told us what messaging software you are using ...

Retirement is great! Especially in the Antilles ...
Raymond (INSA, AFPA)

Hello

The difficulty of the investigation will depend on the means employed for the sending.

The result is not guaranteed.

Thank you for this obvious statement, but how can we detect this without calling? If you don't know, that's too bad. Thank you and have a good day.