I have an e-mail address [email protected]
and we use Yandex Mail for sending / receiving mails. I also set the profile picture in Yandex Passport but it's not shown in Gmail when I send an e-mail from Yandex to Gmail.
How Gmail find out the profile picture of the emails from third party services? The profile pictures are not included in email payload and e-mail providers doesn't use a global avatar service such as Gravatar. Is there anything that I can do to make it work?
After Google closed down G+ for non-G-Suite users the solution given before no longer works. An effective way is now setting up your webmail as an alternate email in your google account settings as explained here