[Announcements] footers being shown as attachments

Dear Mailman3.com users! There is a known issue <https://wiki.list.org/DOC/4.39%20Mailman%20is%20munging%20HTML%20%26%20MIME-formatted%20messages%20before%20they%20are%20sent%20out%3F%20%28problems%20with%20Mailman%202.1.x%20footers%29> with Mailman footers being shown as attachments by some email clients, e.g. Microsoft Outlook. We have introduced a fix for that issue which is available from the Dedicated plan. If you want this fix enabled for your server, please reach support <support@mailman3.com>. New IT