Thanks for customcert it is really great
We get a few emails each week from users who are trying to verify their certificate but aren't typing the correct code because they can't tell the difference between an "I" (uppercase i) and an "l" lowercase "L".
Is there a way to limit the characters used within the verification code? If you can point me to the relevant PHP file I can edit it myself to prevent either of these characters from being used.
Thanks a lot.