Mailing List
https://www.drupal.org/project/mailing_list
https://www.drupal.org/project/mailing_subscriber
https://www.drupal.org/project/mailgroup
https://www.drupal.org/project/views_send
https://www.drupal.org/project/smtp
https://www.drupal.org/project/phpmailer_smtp
https://www.drupal.org/project/smtp_mail_auth_handler
https://www.drupal.org/project/mail_debugger
https://www.drupal.org/project/mail_message_templates
https://www.drupal.org/project/advancedqueue_mail
https://www.drupal.org/project/decoupled_mail_links
https://www.drupal.org/project/contact_mail_formatter
https://www.drupal.org/project/contact_optional_outgoing_mail
https://www.drupal.org/project/unified_mail_dispatcher
https://www.drupal.org/project/mail_redirect
https://www.drupal.org/project/mail_composer
https://www.drupal.org/project/user_mail_control
https://www.drupal.org/project/admin_receipt_mail
https://www.drupal.org/project/rest_mail_login
https://www.drupal.org/project/change_mail_page
https://www.drupal.org/project/linkchecker_summary_mail
https://www.drupal.org/project/birthday_wish_mail
https://www.drupal.org/project/mail_entity_queue
https://www.drupal.org/project/welcome_mail
https://www.drupal.org/project/send_mails
https://www.drupal.org/project/contact_mail
https://www.drupal.org/project/maillog
https://www.drupal.org/project/asm
https://www.drupal.org/project/contact_storage
https://www.drupal.org/project/contact_storage_dm
https://www.drupal.org/project/email_username
https://www.drupal.org/project/reroute_email
https://www.drupal.org/project/mailgroup_imap
https://www.drupal.org/project/obfuscate_email
https://www.drupal.org/project/email_formatter
https://www.drupal.org/project/workbench_email
https://www.drupal.org/project/mail_safety