# phpBB importer fails to import anonymous users differing only by letter case

**URL:** <https://meta.discourse.org/t/phpbb-importer-fails-to-import-anonymous-users-differing-only-by-letter-case/47083>\
**Category:** Bug\
**Created:** [7월 11, 2016, 11:01오전 UTC](https://meta.discourse.org/t/phpbb-importer-fails-to-import-anonymous-users-differing-only-by-letter-case/47083 "2016-07-11T11:01:14Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![codinghorror](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/codinghorror/32/110067_2.png) [@codinghorror](https://meta.discourse.org/u/codinghorror)\
**Post date:** [7월 11, 2016, 7:28오후 UTC](https://meta.discourse.org/t/phpbb-importer-fails-to-import-anonymous-users-differing-only-by-letter-case/47083/2 "2016-07-11T19:28:58Z")

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Duplicate email addresses are not allowed. This should be sanitized before it gets to the importer code.

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_[View the full topic](https://meta.discourse.org/t/phpbb-importer-fails-to-import-anonymous-users-differing-only-by-letter-case/47083)._