mail-address instead username from userfield in a query-result?

Hi @all,

i have a query like this:

im issues --fields=id,<userfield> --qeryDefinition=(bla bla bla...)

If i run this query i get a list which contains item-id and the username from the field <userfield>. But i need the mail-address which is linked to this user. Is it possible to see this mail-address instead of the username? Thanks,

kind regards, Jens