source: phonelux-backend/src/main/java/finki/it/phoneluxbackend/security/email/EmailValidator.java

package finki.it.phoneluxbackend.security.email;

import org.springframework.stereotype.Service;

import java.util.function.Predicate;
import java.util.regex.Pattern;

@Service
public class EmailValidator implements Predicate<String> {

    @Override
    public boolean test(String s) {
        // regex to validate email
        return Pattern.compile("^[a-zA-Z0-9_!#$%&'*+/=?`{|}~^.-]+@[a-zA-Z0-9.-]+$").matcher(s).matches();
    }
}