Errors in /var/log/z-push/z-push-error.log

Hi!

I try to use Outlook 2016 with ActiveSync.
I have something like this in my logs:
I copy 5GB old mail to this account with mozilla thunderbird from one imap account to MIAB.
Where is the problem?

06/11/2016 22:09:36 [ 2947] [ERROR] [d.mac@xxxinvest.pl] z_RFC822 error: Validation failed for: “;” <;>
06/11/2016 22:19:23 [ 4960] [ERROR] [d.mac@xxxinvest.pl] z_RFC822 error: Validation failed for: “;” <;>
06/11/2016 22:21:33 [ 7810] [ERROR] [d.mac@xxxinvest.pl] LoopDetection->ProcessLoopDetectionPreviousConnectionFailed(): Command ‘Sync’ at 06/11/2016 22:09:50 with pid ‘2825’ terminated une$
06/11/2016 22:21:33 [ 7810] [ERROR] [d.mac@xxxinvest.pl] Please check your logs for this PID and errors like PHP-Fatals or Apache segmentation faults and report your results to the Z-Push $
06/11/2016 23:11:44 [ 8854] [ERROR] [d.mac@xxxinvest.pl] z_RFC822 error: Validation failed for: “;” <;>
06/11/2016 23:17:07 [ 8090] [ERROR] [d.mac@xxxinvest.pl] z_RFC822 error: Validation failed for: “d.mac@xxxinvest.pld.mac@xxxinvest.pl” <d.mac@xxxinvest.pld.mac@xxxinvest.pl>
06/11/2016 23:17:07 [ 8090] [ERROR] [d.mac@xxxinvest.pl] z_RFC822 error: Validation failed for: “d.mac@xxxinvest.pld.mac@xxxinvest.pl” <d.mac@xxxinvest.pld.mac@xxxinvest.pl>
06/11/2016 23:17:07 [ 8090] [ERROR] [d.mac@xxxinvest.pl] z_RFC822 error: Validation failed for: “d.mac@xxxinvest.pld.mac@xxxinvest.pl” <d.mac@xxxinvest.pld.mac@xxxinvest.pl>