Notepad++ regex issue

[190]

So I have a combo
https://i.gyazo.com/2dbf98d2e5de37e2e0f3...e75456.png

what's a good regex to remove the lines for fake emails that are 1-5 characters long like [email protected] and ect.

[11]

Instead of using a regex, why don't you just use string formatting techniques in any programming language to sort things out?