discourse/app/views/email/unsubscribe.html.erb

<div class='container unsubscribe'>
  <%- if @not_found || @different_user %>

    <%if @not_found%>
      <p><%= t "unsubscribe.not_found_description" %></p>
    <%- else %>
      <p><%= t("unsubscribe.different_user_description").html_safe %></p>
      <%= form_tag(session_path(id: current_user.username_lower), method: :delete) do %>
        <%= hidden_field_tag(:return_url, @return_url) %>
        <%= submit_tag t('unsubscribe.log_out'), class: 'btn btn-danger' %>
      <%- end%>
    <%- end %>
  <%- else %>
    <br/>
    <h2><%= t 'unsubscribe.title'%> <%= @user.email %></h2>
    <br/>
    <%= form_tag(email_perform_unsubscribe_path(key: params[:key])) do %>
      <%if @topic %>
        <% if @watching_topic %>
          <p>
          <label>
            <%= check_box_tag 'unwatch_topic', 1, true %>
            <%= t('unsubscribe.stop_watching_topic', link: render_topic_title(@topic)).html_safe %>
          </label>
          </p>
        <% else %>
          <p>
          <label>
            <%= check_box_tag 'mute_topic', 1, true %>
            <%= t('unsubscribe.mute_topic', link: render_topic_title(@topic)).html_safe %>
          </label>
          </p>
        <% end %>


        <% if @watched_count %>
          <p>
          <label>
            <%= check_box_tag 'unwatch_category' %>
            <%= t('unsubscribe.unwatch_category', category: category_badge(@topic.category, show_uncategorized: true)).html_safe %>
          </label>
          </p>
        <% end %>
      <% end %>

      <% if @user.user_option.mailing_list_mode && !SiteSetting.disable_mailing_list_mode %>
        <p>
        <label>
        <%= check_box_tag 'disable_mailing_list' %>
        <%= t 'unsubscribe.mailing_list_mode' %>
        </label>
        </p>
      <% end %>

      <% if @digest_unsubscribe %>
          <p>

          <% if @digest_frequencies[:current] %>
            <h3>
              <% if @digest_frequencies[:current] == 'never' %>
                <%= t('unsubscribe.digest_frequency.never_title') %> 
              <% else %>
                <%= t(
                  'unsubscribe.digest_frequency.title',
                  frequency: t("unsubscribe.digest_frequency.#{@digest_frequencies[:current]}")
                ) %>
            <% end %>
            </h3>
            <br/>
          <% end %>

          <label><%= t 'unsubscribe.digest_frequency.select_title' %></label>
          <%=
            select_tag :digest_after_minutes,
            options_for_select(@digest_frequencies[:frequencies], @digest_frequencies[:selected]),
            class: 'combobox'
          %>
          </p>
      <% end %>

      <% unless @unsubscribed_from_all %>
        <p>
        <label>
          <%= check_box_tag 'unsubscribe_all', 1, @type=="all" %>
          <%= t 'unsubscribe.all', sitename: SiteSetting.title %>
        </label>
        </p>
      <% end %>

      <br/>
      <% text = @type=='digest' ? t('unsubscribe.submit') : t('unsubscribe.title') %>
      <%= submit_tag text, class: 'btn btn-danger' %>
    <%- end %>


  <%- end %>

</div>