If you are an author of a Gramps third-party addon, you may have received an email today asking you to check and update the author registration data in your addon’s registration file. This email is legit, part of an effort to make sure we can reach authors/maintainers of addons for upkeep, code review, etc.
If you have any questions, please feel free to post here, or reply to the email and I will summarize here.
Thanks!