> Just as the gov required google to remove the app they can also require the big email providers to block all emails with links to it.
You don't need to mail links, you just need to mail required information. Asking Google to filter out some specific e-mail (which could be somewhat randomized for every recipient) probably will not work.
> You need to go through a whitelisted mail service (MailChimp, ...) which is another block point.
Russia can't ask US service to deny making business with US citizen (for example). It's completely outside of their territory.
You don't need to mail links, you just need to mail required information. Asking Google to filter out some specific e-mail (which could be somewhat randomized for every recipient) probably will not work.
> You need to go through a whitelisted mail service (MailChimp, ...) which is another block point.
Russia can't ask US service to deny making business with US citizen (for example). It's completely outside of their territory.