gmail-imap-label (1p)

  gmail-imap-label [-?hpv] [long options...]

    -p --port       local port to connect to (default: 10143)
    -v --verbose    increase verbosity (multiple flags for more verbosity)
    -? -h --help    print usage message and exit

-p port-number, --port port-number

Set the local port for the \s-1IMAP\s0 proxy. The default port is 10143.

-v, --verbose

Set the verbosity level. Multiple flags increase the verbosity level (e.g. -v, -vv, -vvv).

-h, -?, --help

Print a brief help message and exits.

Description of proxy available in Net::Gmail::IMAP::Label