[SOLVED] Sidekiq is queueing mails in the 'default' queue instead of 'mailers' queue

Sidekiq is queueing mails in the 'default' queue instead of 'mailers' queue

While upgrading my Rails 6.0 application to Rails 7.0.3, I'm facing the following problem :

Sidekiq is enqueueing all my mailer jobs through the default queue instead of the mailers queue like it used to before.

Code related to the same :

in application.rb :

    config.active_job.queue_adapter = :sidekiq

My mailer :


class UserMailer < ActionMailer::Base

  def staff_welcome(user, password)
    @user = user
    @password = password
    mail(to: user.email, from: "DummyName <#{APP_CONFIG[:notifications_email]}>", reply_to: "#{APP_CONFIG[:outbound_email]}", subject: "Your staff account has been created")
  end

And then, inside the controller, i'm calling the mailer as follows :

def create
    @user = User.new
    @user.attributes = users_params.merge(state: 'active', source: :dummy_source, activity: 1)

    set_roles(users_params)
    respond_to do |format|
      if @user.save
        if @user.staff?
          UserMailer.staff_welcome(@user, params[:user][:password]).deliver_later

I'm interested in finding out why upon upgrading to Rails 7 is my queue for mailers changing? When i run the server with Rails 6, the mailers get queued via the mailers queue, but with Rails 7, the queue is default.

I understand that if i call the mailer from inside an ActiveJob, and inside the controller call the job instead of the mailer directly, I will be able to use syntax like queue_as :mailers. Is that the correct way to fix this?

I checked the changelog for sidekiq but couldn't find anything related to this? Did they change the default queue when it comes to mailers?

Also, can i set sidekiq_options with the deliver_later function?

Solution