regex extract email from strings

Question

I want to know if by using regular expressions I am able to extract emails from the following strings?

The following RE pattern is .*@.*match with all st

Answer 1

[a-zA-Z0-9-_.]+@[a-zA-Z0-9-_.]+ worked for me, you can check the result on this regex101 saved regex.

It's really just twice the same pattern separated by an @ sign.

The pattern is 1 or more occurences of:

• a-z: any lowercase letter
• A-Z: any uppercase letter
• 0-9: any digit
• -_.: a hyphen, an underscore or a dot

If it missed some emails, add any missing character to it and it should do the trick.

Edit

I didn't notice it first, but when going to the regex101 link, there's an Explanation section at the top-right corner of the screen explaining what the regular expression matches.