Sympa is a useful tool that any staff or faculty member can use to create and manage their own mailing lists. Because anyone can create Sympa lists, you may not always know whom to contact to be added or removed from a list. For this reason, every Sympa list has a special address that can be used to contact only the list owners.
Appending “-request” to the portion of the email address before the @ symbol will send your email only to the list owners. For example, to send a message to the owners of email@example.com, you would send an email to firstname.lastname@example.org. The message will not be seen by the list’s normal subscribers.
For additional Sympa tips and tricks, check out UC Davis’ IT Knowledge Base: http://kb.ucdavis.edu/?id=203