adjust email configs loading

app/mailers/submitter_mailer.rb

@@ -8,7 +8,7 @@ class SubmitterMailer < ApplicationMailer
     @submitter = submitter
     @body = body.presence
 
-    @email_config = @current_account.account_configs.find_by(key: AccountConfig::SUBMITTER_INVITATION_EMAIL_KEY)
+    @email_config = AccountConfigs.find_for_account(@current_account, AccountConfig::SUBMITTER_INVITATION_EMAIL_KEY)
 
     subject =
       if @email_config || subject.present?
@@ -31,7 +31,7 @@ class SubmitterMailer < ApplicationMailer
 
     Submissions::EnsureResultGenerated.call(submitter)
 
-    @email_config = @current_account.account_configs.find_by(key: AccountConfig::SUBMITTER_COMPLETED_EMAIL_KEY)
+    @email_config = AccountConfigs.find_for_account(@current_account, AccountConfig::SUBMITTER_COMPLETED_EMAIL_KEY)
 
     add_completed_email_attachments!(submitter)
 
@@ -58,7 +58,7 @@ class SubmitterMailer < ApplicationMailer
 
     @documents = add_completed_email_attachments!(submitter)
 
-    @email_config = @current_account.account_configs.find_by(key: AccountConfig::SUBMITTER_DOCUMENTS_COPY_EMAIL_KEY)
+    @email_config = AccountConfigs.find_for_account(@current_account, AccountConfig::SUBMITTER_DOCUMENTS_COPY_EMAIL_KEY)
 
     subject =
       if @email_config

lib/account_configs.rb

@@ -17,7 +17,15 @@ module AccountConfigs
   module_function
 
   def find_or_initialize_for_key(account, key)
-    account.account_configs.find_by(key:) ||
+    find_for_account(account, key) ||
       account.account_configs.new(key:, value: AccountConfig::DEFAULT_VALUES[key])
   end
+
+  def find_for_account(account, key)
+    configs = account.account_configs.find_by(key:)
+
+    configs ||= Account.order(:id).first.account_configs.find_by(key:) unless Docuseal.multitenant?
+
+    configs
+  end
 end