Just to note it, "+" is a perfectly valid character for email addresses -- it meets the RFC guidelines.
I am posting this because it is always annoying when systems with poorly informed coders decide to tell me that my email address is invalid. IP.Board is one of those systems. Unfortunately, IP.Board will NOT allow just USERS to report bugs -- it has to come from the site OWNER. Therefore, I'm writing to request that Piriform submit a bug report to IP.Board's Support about the fact that their registration system complains that emails with a "+" in them are not valid -- when, in fact, they are.
Thank you!
- John...