After clicking several mailboxes to open, then clicking "Open", Postal begins to open each mailbox.
All good so far.
At random times during opening, whether as fast as taking only one mail item or as late as opening several mails, Postal will freeze.
I must then close and reopen the Mailbox.
Again, I click to open several mails and again, it freezes randomly while opening them.
Opening them and individually taking each item works, of course. It's also why we use Postal, to get them all with one click.
Any ideas are welcome. No other mail addons are used.