(University of California at Berkeley) - it refers to a variant of the POP3 email server that doesn't support command buffering - the suffix /ucb disables command buffering, so ANT's !InetSuite has to wait for the response of a single command before sending the next single command when mail from "mail.surfaid.org" stopped working, ANT recommended changing to "mail.surfaid.org/ucb", whereupon the flood-gates opened