[Exim] mbox troubles

Good time of a day.
I have a problem with exim(virtualusers+mbox).
Sometimes messages in mbox files did not split with two '\n', and then
this messages become "hidden" to pop3 server and MUA.
I can manually add '\n' or '\n.\n', but i want to fix it globally.
Tnx to all, who can help me.


Happy SysAdmin day!!!