I tried to setup my GMail-Account including my various send-as-addresses that I set up in the Webmail interface using this great tutorial.
However, I have two issues:
- I cannot setup multiple S/MIME signing certificates, so only one address can send signed mails.
- The iPhone has it's own idea which address should be the default from-Address.
Is there any way to setup a GMail-Account so there is one inbox, multiple send-as-addresses and an S/MIME-signing-certificate set up for each address, and a user-selectable default address? Apple Mail on OS X can do that.