How many domains can I restrict Confluence to allow users to sign up?
Platform Notice: Data Center Only - This article only applies to Atlassian products on the Data Center platform.
Note that this KB was created for the Data Center version of the product. Data Center KBs for non-Data-Center-specific features may also work for Server versions of the product, however they have not been tested. Support for Server* products ended on February 15th 2024. If you are running a Server product, you can visit the Atlassian Server end of support announcement to review your migration options.
*Except Fisheye and Crucible
Summary
As per Add and Invite Users, Confluence has user signup.
In order to avoid security and licensing issues, is possible to restrict users by domain(s) - people will only be able to sign up if their email address belongs to one of the domains specified by Confluence administrators.
Solution
How many domains can I restrict Confluence to allow users to sign up?
Limit depends on character count, there's not a limit for an exact number of domains.
The information provided on the Restrict by Domain field is stored on the BANDANA table, specifically on the column bandanavalue. The Data Type of this column on PostgreSQL is Text, which means it can hold text information up to 1GB, based on this documentation.
As a utf-8character can be up to 3bytes, it means will be able to store near 357.913.941,3 characters.
ℹ️ This size may vary according to the DBMS used.
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