# SSO with non-unique email addresses?

**URL:** <https://meta.discourse.org/t/sso-with-non-unique-email-addresses/68125>\
**Category:** Product Support\
**Created:** [16.Август.2017 01:14:30 UTC](https://meta.discourse.org/t/sso-with-non-unique-email-addresses/68125 "2017-08-16T01:14:30Z")\
**Posts on this page:** 1\
**Showing post:** 4

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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:** [16.Август.2017 02:23:36 UTC](https://meta.discourse.org/t/sso-with-non-unique-email-addresses/68125/4 "2017-08-16T02:23:36Z")

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> [@cbhp](#):
>
> multiple accounts with different usernames but same email addresses

@pfaffman how exactly is that going to help them there? By disambiguating? That is true, when you have

`user@example.com`

you could change it to

`user+secondary@example.com1`

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