If you enter a subaddress into your personal alias database as a public alias, then you can have mail sent to you with that subaddress automatically forwarded. (See Section 2.3 for a description of subaddresses.) For example, suppose that your address is bob@acme.com and mail to you from the STAFF mailing list arrives addressed to bob+staff@acme.com. If you create a public alias for staff then mail to the address bob+staff@acme.com will be forwarded to the address associated with the alias. For instance, the commands
db> add staff bob+staff@athena.acme.com db> set staff publiccause mail sent to bob+staff@acme.com to be forwarded to bob+staff@athena.acme.com.