To get a full list of publicly-accessible mailing lists at UCSD, you should send mail to listserv@ucsd.edu with a blank Subject line, and with the body text of

index

Or to get the same list, only supplemented with brief descriptions of each list, use the command

longindex

To subscribe or unsubscribe to a particular mailing list, send mail to listserv@ucsd.edu with a blank Subject line, and with the body text of

add networkusername@ucsd.edu mailinglistname

    or

delete networkusername@ucsd.edu mailinglistname

For example,

add gbluefin@ucsd.edu ucsd-flyers

    or

delete gbluefin@ucsd.edu ucsd-flyers