[Dovecot] Problem with emails larger than 10k

I cannot download emails that are larger than 10k. I can download them fine with test32. I am running test35 on OpenBSD/macppc -current. I am downloading the files with Sylpheed-Claws 0.9.9claws on OpenBSD/macppc -current (different machines), over pop3-ssl on IPv6. Problem still occurs with IPv4.

On the large files, the download hangs at 4.0k. Multiple small emails work fine.

-- A day for firm decisions!!!!! Or is it?