Delete mail after sending it. Can the other party still see the news?

If the message is deleted after being sent successfully, the other party can see it.

If it is deleted in time before the transmission is successful, the other party will not see it.

If you delete QQ or WeChat unilaterally, the other party can see it, but if you withdraw it within 2 minutes, the other party can't see it (unless the other party sees it before you withdraw it).

If you don't want the other party to see it, I suggest you delete the short message in the other party's mobile phone before the other party sees it.