To save disk space, downloading messages from the server and keeping local copies for offline use can be restricted by age or size.
'S urrainn dhut cuingeachadh a-rèir aoise is meud a chur air luchdadh a-nuas de theachdaireachdan on fhrithealaiche 's air cumail de lethbhric ionadail gus àite a chaomhnadh air an diosg.