I receive e-mails from various senders, and when I view them in Google Inbox, either on inbox.google.com, or on the Android App, some have an icon in a circle next to them... others just have a letter.
BitBucket, for example, has a nice icon when they send me an e-mail:
The question:
Does Google Inbox fetch this picture with some kind of G+ magic, or are certain e-mail headers involved here?
How do I implement this in my own solutions when sending out e-mails?
According to MarketingLand.com
Display Your Logo As The From: Address
One of the great things about the new Inbox by Google is that it is more visual. The sender of an email is displayed by an icon rather than a plain text From: address. This is similar to Gmail’s Grid View and works by:
- Having a verified Google+ business account
- Authenticating with SPF and DKIM
- Registering with Google
ReturnPath has a detailed blog post about how they did it: https://blog.returnpath.com/creating-profile-image-gmail-subscribers/
Highlights from their post excerpted below:
- Because our reply-to email address was set up as an alias for people to email ... we had to turn that reply-to email address into an actual [Google] account.
- Add logo as profile picture for Google Account.
- Ensure that your DMARC record is built.
- If in doubt, talk to your ESP.
I am part of Stack Overflow Marketing department; we haven't tried this yet, but it is on my email to-do list.
来源：https://stackoverflow.com/questions/35229891/how-do-i-get-an-icon-in-google-inbox