Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Even after updating to 14.5, the problem persisted for me on my M3 MacBook Air. Unrelated, I was having trouble with my 2.4 GHz WiFi. I disabled 2.4 GHz for 5 GHz and also switched from WPA2 to WPA3 security. The Mail problem since stopped. It also solved the problem of Mail hanging when quitting it.

I realize that trying this potential solution may not be feasible for everyone.
 
I've just experienced this. In my case I had the main apple id (something@gmail.com) and an apple id alias - something-else@icloud.com

In Mail app which I never opened nor configured, which opened when I clicked an email link in Safari, there was default the apple id email address. But since apple smtp servers will not accept From emails ending with non-apple hosted domains, like google's @gmail.com, this message pops-up.

So what I did was go to Mail settings, accounts (the accounts in mail settings, NOT in iCloud System settings!), email address - Edit email addresses. Filled in my @icloud.com email and voila, I was able to use Hide my email!

HTH
 
  • Like
Reactions: Cooper27
I'm running Sonoma 14.4.1 on the M3 MacBook Air. When I try to compose a new message in Mail, the new message tries to default to "Hide My Email" for the From field and presents a popup stating "Update Your "Forward To" Email Address Go to Hide My Email settings, and change your "Forward To" address to one that is set up in the Mail App."

The "Forward To" address is set up in Mail. I tried changing it in the Hide My Email settings both on iCloud and on the Mac, and I still get the popup. What's worse is my default address is missing from the From field after the popup is displayed, and closing the compose window causes Mail to save a draft to a new On My Mac Drafts folder that it creates. The problem sorts itself out after a while, but then just happens randomly when trying to compose a new message. It also causes iCloud Mail to glitch on the iPhone.

Any suggestions? The bug makes Mail practically unusable for me.

View attachment 2369864
I am here in May 2026!!!!!!! Insanity
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.