I was set the Mailbox limit to 30MB per mail. Now, I was need to send an attachment with 20MB and got the error messages that max size is set to 5MB upload. Was looking for the settings in CP and didn't found. So, whiloe using Roundcube at the moment, I was looking there and found in htaccess: That seems to be the limits for Roundcube. If I change that limits would that be OK? Also directly next question: If I like to go back to SquirrelMail, would that be an easy task? And as I asked already, send an Request too, is it possible to change the Mail Client "on the fly"? Thanks.