When I receive an email signed (not encrypted) with S/MIME in my Gmail account, it provides me no option of verifying the signature when I'm using the webmail interface. Which is fine, I have made peace with that. However, when I open the signed email (in my Gmail account) on my iPhone, it also doesn't show the checkmark next to the sender's name, which it does for signed email received in my Exchange account.
What's going on there? Is Gmail actively stripping the attached certificate so that my iPhone can't use it? Any ideas? Thanks!