I use a local mail client (Opera's) to automatically backup all my mails from GMail. I set it up once and I forgot about it. Today it occured to me to check how the backing up works and turns out the last mail downloaded from Gmail is from March this year.
I checked the POP settings in GMail and it says: POP is enabled for all mail that has arrived since 9/14/04, so it seems OK.
When I initate a POP sync in the mail client it connects, authenticates (so authentication works) and says there are no new messages, though I've sent and received hundreds of messages since March using the web interface.
If POP is enabled for all mails since September 2004 and authentication works then what else can be the problem, so that new messages are not fetched?