[Dovecot] blank line at the top of mbox

Hello,

It seems dovecop pop3 server sometimes inserts a blank line at the top of the mbox. It only happens for certain users not all. I'm not sure why it's doing that.

Looking back into the mailing list, I saw the same post in Oct 6, 2003 but there was no reply to it.

Is there a patch or fix that i can use to get around the blank line?

Thank you. Ken