What can proxymap be used for in a Postfix installation? (Select TWO correct answers)

Proxymap can act as a proxy for multiple lookup tables, allowing Postfix to open a single connection to the proxymap service instead of opening each individual lookup table separately, thus consolidating open file descriptors.

While Postfix uses lookup tables for aliases, proxymap's primary purpose is not creating/querying alias databases specifically, but rather generic lookup table access.

Mapping mail user IDs to system accounts is a function of virtual maps or other address rewriting mechanisms, not the primary use of proxymap itself.

When Postfix daemons are chrooted, lookup tables outside the chroot jail cannot be directly accessed; proxymap can be run outside the chroot and serve as a bridge to these external tables, overcoming the restriction.

Proxymap does not create lookup tables; it provides a proxy service for querying existing Postfix lookup tables.