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We allow the same email address to be attached to multiple accounts, but Synapse won't let us #2881

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matrixbot opened this issue Sep 10, 2024 · 1 comment
Open

We allow the same email address to be attached to multiple accounts, but Synapse won't let us #2881

matrixbot opened this issue Sep 10, 2024 · 1 comment
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O-Occasional Affects or can be seen by some users regularly or most users rarely S-Tolerable Minor significance, cosmetic issues, low or no impact to users. T-Defect Something isn't working

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@matrixbot
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This issue was originally created by @sandhose at matrix-org/matrix-authentication-service#2881.

In MAS we do allow multiple accounts to have the same email address. This is intentional, as we don't really use email addresses as identifiers, and avoids people enumerating other users emails.

However, when we sync those users with Synapse, we may have a problem, as Synapse has a unique index on email addresses, so syncing some users may fail.
@matrixbot matrixbot added O-Occasional Affects or can be seen by some users regularly or most users rarely S-Tolerable Minor significance, cosmetic issues, low or no impact to users. T-Defect Something isn't working labels Sep 10, 2024
@matrixbot matrixbot mentioned this issue Sep 10, 2024
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@sandhose
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Either we:

  • remove this feature from MAS
  • or we handle that gracefully in Synapse

@sandhose sandhose mentioned this issue Oct 28, 2024
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O-Occasional Affects or can be seen by some users regularly or most users rarely S-Tolerable Minor significance, cosmetic issues, low or no impact to users. T-Defect Something isn't working
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