Why are accents accepted in sfValidatorEmail?

There was a bug in my application, apparently accent开发者_高级运维s in an email address where not considered an error and the sfMailer was crashing an error because of this.

Digging through my code I realized I wasn't to blame.

sfValidatorEmail uses this regular expression:

const REGEX_EMAIL = '/^([^@\s]+)@((?:[-a-z0-9]+\.)+[a-z]{2,})$/i';

Accents in the first part of the email are accepted.

Should sfValidatorEmail not accept accents or should sfMailer accept it?

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sfMailer should accept it. It is legitimate to have accents in the first part of the email address.

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According to wikipedia accents are valid. Off course, in practice, in webprogramming, I try to avoid anything (spaces, accents,...) that can upset the 'internet middle layer' (i.e. routers, servers, etc).