“The new feature that is currently bothering me is Mail’s new ability to remind me if I forget an attachment or recipient,” writes 512 Pixels‘ Stephen Hackett, who was first to highlight the problem.
“Gmail and others have had this for years, and it’s honestly great,” he says. “It’s just too bad that Mail doesn’t seem to understand that some people put their email addresses in their email signatures.”
“As you can see in this screenshot [above], Mail has started warning me every time I send a message that the email address in my footer has been left off the recipient list.
“This is a shockingly dumb catch on Mail’s part because the application should know what I have set up using its own Signatures feature. It’s literally right there in the app’s own settings.”
Hackett has filed feedback with Apple to hopefully address the problem in a future update, but until then it’s worth bearing in mind that Mail will continually bug you to add any addresses in your signatures as missing recipients before it lets you send messages on their way.