TYPO3 Core

Correct me if I'm wrong - I think most unicode characters are possible since the introduction of IDN's.

With core v10, email validation is done with a library, standard implementation is Egulias\EmailValidator\Validator\RFCValidation::class.

Core v11 adds a configuration array for validators. This allows to add DNSCheckValidation::class from the same library (or others, or own validators), which checks the domain-part for validity, which should solve your issue.

I'd say your issue is not security related, so we'll probably not touch it in v9 anymore. The validators-array is a feature, so we probably don't backport this to v10, except there are very good reasons to do so.

Is that fine with you?

Christian Kuhn wrote in #note-1:

Correct me if I'm wrong - I think most unicode characters are possible since the introduction of IDN's.

With core v10, email validation is done with a library, standard implementation is Egulias\EmailValidator\Validator\RFCValidation::class.

Core v11 adds a configuration array for validators. This allows to add DNSCheckValidation::class from the same library (or others, or own validators), which checks the domain-part for validity, which should solve your issue.

I'd say your issue is not security related, so we'll probably not touch it in v9 anymore. The validators-array is a feature, so we probably don't backport this to v10, except there are very good reasons to do so.

Is that fine with you?

Hi Christian
Sounds good. I think we can live with that :-)

Regards
Henrik

I do not understand why this bug report is closed..... - somethings have changed in v. 10 and the function GeneralUtility::validEmail does not return a valid email :-(

Imagine this scenario; in cli mode we maintain fe_users in TYP03 from 3rd party software and use email as username. 3rd party software does not have email validation so something like this can be added test@domain. When cli handles the data through TYPO3 datahandler the fe_users gets created / updated with errornous email and things start to go wrong..... :-(

Should I create another bug report for version 10 only?

INFO: https://docs.typo3.org/c/typo3/cms-core/master/en-us/Changelog/10.3/Feature-90370-UseEguliasEmailValidatorForEmailValidation.html