Do admins bypass "Max mentions per post" setting value?

jahan_gagan · October 13, 2025, 9:17am

The limit is not applied to admins and staff. Staff members (moderators and admins) can mention as many users as needed in a single post.

github.com/discourse/discourse

lib/validators/post_validator.rb

main


      
          def max_mention_validator(post)
            return if post.acting_user&.staff?
          
            if acting_user_is_trusted?(post) || private_message?(post)
              add_error_if_count_exceeded(
                post,
                :no_mentions_allowed,
                :too_many_mentions,
                post.raw_mentions.size,
                SiteSetting.max_mentions_per_post,
              )
            else
              add_error_if_count_exceeded(
                post,
                :no_mentions_allowed_newuser,
                :too_many_mentions_newuser,
                post.raw_mentions.size,
                SiteSetting.newuser_max_mentions_per_post,
              )
            end
          end

If you mention an extremely large number of users very frequently, you might cause performance issues—primarily related to notifications and emails.

Topic		Replies	Views
Unable to mention groups >250 members Support	7	442	January 2, 2023
Staff should be exempt from user mention limit Feature	14	3015	February 1, 2016
Dealing with user mentions Community mentions	18	3832	March 7, 2018
Prevent email addresses from being counted as mentions Bug	8	1441	January 12, 2016
This group has more members than the administrator configured mention limit Support	2	520	June 8, 2024

Do admins bypass "Max mentions per post" setting value?

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