# SSO errors - some emails receive "Validation failed: Primary email is not allowed."

**URL:** <https://meta.discourse.org/t/sso-errors-some-emails-receive-validation-failed-primary-email-is-not-allowed/144484>\
**Category:** SSO\
**Created:** [16 במרץ,‏ 2020,‏ 3:41pm UTC](https://meta.discourse.org/t/sso-errors-some-emails-receive-validation-failed-primary-email-is-not-allowed/144484 "2020-03-16T15:41:44Z")\
**Posts on this page:** 1\
**Showing post:** 1

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**Author:** ![bvdrie72](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/bvdrie72/32/158775_2.png) [@bvdrie72](https://meta.discourse.org/u/bvdrie72)\
**Post date:** [16 במרץ,‏ 2020,‏ 3:41pm UTC](https://meta.discourse.org/t/sso-errors-some-emails-receive-validation-failed-primary-email-is-not-allowed/144484/1 "2020-03-16T15:41:44Z")

</div>

We recently moved all users to SSO via our primary site. Out of 50k+ users, all but 9 seem to work fine.

The 9 remaining emails get this error:  
Validation failed: Primary email is not allowed.

The email addresses do not exist in discourse and they are valid emails

We are running 2.3.9

Any reason to believe these will suddenly work in 2.4 or 2.5?

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_[View the full topic](https://meta.discourse.org/t/sso-errors-some-emails-receive-validation-failed-primary-email-is-not-allowed/144484)._