I received the following email to my Gmail account.
(all the pixellated sections represent the same string)
I checked the email was legitimate (SPF, DKIM and DMARC all pass), and then I stupidly clicked on the Verify Contact Email button before noticing that the email@example.com had been added "as the contact email address for [my] Google Account firstname.lastname@example.org" (note the '56' in the second email address)
When I clicked the link, I was asked to log in to the myemailaddress56 account. I didn't do this. The browser in question was obviously already connected to the email@example.com account.
The email states:
ignore this email and that address won't be added to your Google Account. Someone may have made a mistake typing their own email address
which is obviously the case - but I haven't quite ignored the email.
Has this affected my firstname.lastname@example.org account at all?