Help Delete suggested e-mail addresses from Android?

[kingfame]

Hi,

I have the following issue, and can't find a solution:

When I send an e-mail (inbox or gmail, doesn't matter) from my phone and I enter e. g. my name it suggest some old mail addresses I mailed in the past, but don't want to show up anymore. This ONLY happens on my phone. I deleted ALL contacts (even the suggested ones) in my Google account, as I use my own CardDAV server for the synchronization of accounts. When I enter my name in the web application for Inbox or Gmail those addresses doesn't show up. That brings me to the conclusion that they are cached locally on my phone, but I don't know how to get rid of them?

I cleared the cache of the contacts and Inbox app already without success. Any ideas?

Thanks,
Felix