Mails sind verloren gegangen

Hallo,
folgendes Problem:
Ich habe mein Mail Programm Neu Installiert. Mein Backup wieder hergestellt. Jetzt fehlen die letzten 4 Monate der Mails. Alle vorherigen sind da. Weis jemand Rat?

I reinstalled my email program. Restored my backup. Now the last 4 months of emails are missing. All previous ones are there. Does anyone have any advice?

If you have a IMAP or Exchange account, could be you have the Account “Sync Options limited”, so you are then not seeing the last 4 months of email in your Inbox.

Go to “Menu / Accounts” and click either the IMAP or Exchange tab along the top, and you will see in the “Sync Options” part way down to set the message sync period as in the below Gmail IMAP example. That can be set anywhere up to All time in the Message Sync drop-down field.