Empty incoming mail folder whit iOS 11.4

Hi,
on one iOS device I have troubles since Saturday.
It shows me no new incoming Mails.
I made a reset of the mail account on iOS Ipad Pro und no it shows me 0 new Mails in the incoming Mail folder.
If go to a subfolder it shows me actual mails.
It’s a little bit weird in case does not changed something.
On the Iphone it works perfect and also whit the nine app on the iPad.
Some ideas?
Best Carmen

Hi Carmen,

it’s not possible to tell anything without Z-Push logs.
Please also post the output of
z-push-admin -a list -u username -d deviceid

How did you make the reset of the mail account? Do you have a sync limit for your emails and are there newer emails than the limit?
Is it the system from your signature? You also should update to Z-Push 2.4.3.

Manfred