Stop/delete an email that's been trying to send on S10e

[ChelseaFCfan1]

Is there anyway to stop/delete an email (that contains a video clip, that can’t load), & it's been trying to send since 8:30 CST?

Email provider is Yahoo!... I'd have an easier time finding Jimmy Hoffa, than contacting those jokers!

Please help... if you can.

[N0Y0U2114]

First check the yahoo mail site/app to see if the email has sent yet; if it's already sent. If it has, there isn't much that can be done. There are some other things that are important to know.
1. What email app are you using (Gmail, Yahoo Mail, Samsung email?)
2. Is the yahoo account successfully logged in if it isn't the yahoo Mail app? (Check the settings and re-login if it prompts)

[ChelseaFCfan1]

Thx.