Can't send mail from alias email addresses since upgrading to macOS Tahoe

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Level 1

70 points

Can't send mail from alias email addresses since upgrading to macOS Tahoe

Just updated to macOS Tahoe. I receive emails TO my various icloud aliases without a problem. However when I want to respond to those emails, the send FROM email defaults to my primary email account, not the alias to which the email was sent.

Since the entire point of having an alias is to keep private your main email address, and thus it would entirely defeat the purpose of having an alias to not allow sending email from it, I am assuming there is some option or setting I need to set somewhere?

MacBook Pro 15″, macOS 15.6

Posted on Oct 12, 2025 4:23 PM

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Answer 1

Top-ranking reply

AZsport115 Author

Level 1

70 points

Nov 21, 2025 12:40 PM in response to AZsport115

SOLUTION:

Open Mail --> Settings
On the left you will see all of your mail accounts. Select your primary iCloud account on the left side of window
Navigate to the Accounts Tab
On the Accounts tab, under Email Address, you will see your primary iCloud account email address. Click it and a drop down menu will appear with an option to Edit Email Addresses...
Click the + sign and manually type your email Alias
Repeat for all Aliases
Restart Mail

You should now again be able to send emails from your aliases.

Note: I am running macOS Tahoe 26.1.

Thanks to @Sergey-A for the help!

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Answer 2

Sergey-A

Level 1

16 points

Nov 19, 2025 10:30 AM in response to AZsport115

After updating to version 26.1, I opened the Settings window, went to the Accounts tab, and found a drop-down list of email addresses. Normally, it shows a list of addresses, but mine only showed the primary address and an item called "Add New" or something like that (I can't remember the exact name). Clicking it allowed me to add a new address directly in the Mail app (without being redirected to the iCloud webpage, as is usually the case). I added one of the missing addresses, then opened a new email, opened the "From" drop-down list, the app froze for a few seconds, and then ALL the missing addresses reappeared.

Now I'm thinking that maybe there was no need to edit the addresses in the settings window, maybe it would have been enough to just open a new email message, expand the "From" list, and have the app reread all the addresses.

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Answer 3

AlWeir

Level 5

4,862 points

Oct 19, 2025 5:26 AM in response to AZsport115

Contact Apple Support

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Answer 4

Sergey-A

Level 1

16 points

Nov 18, 2025 3:54 PM in response to AZsport115

My issue was resolved after 26.1 upgrade. Not automatically thought, I opened Mail Settings, tried to add missing address manualy and send email from it, and then suddenly all missing addresses reappeared.

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Answer 5

Sergey-A

Level 1

16 points

Oct 19, 2025 5:03 AM in response to AZsport115

I have a similar issue on MacBook Pro M2. Clean-installed Tahoe 26.0.1, Mail app for my iCloud account shows only primary email address as available, all custom-domain addresses disappeared. Also I checked Console logs and noticed that every time I access Mail's settings or open AppleID in System Settings an EXC_GUARD crash (whatever it is) is logged. BTW, iPhone's Mail on iOS 26 works fine though.

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Answer 6

AZsport115 Author

Level 1

70 points

Oct 19, 2025 12:56 PM in response to Sergey-A

Mine was also a clean install--I did not restore it from a backup. Even so, I can't find the aliases in send field. It's critical that I be able to find them--I have tons of sign ups using these emails so I really hope somebody can help us out soon!

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Answer 7

AlWeir

Level 5

4,862 points

Oct 14, 2025 9:15 AM in response to AZsport115

Don't know if this will help your problem.

Use email aliases in Mail on Mac

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Answer 8

AZsport115 Author

Level 1

70 points

Oct 14, 2025 12:42 PM in response to AlWeir

No luck. What is happening is that since upgrading to macOS Tahoe, being able to choose an alias in the FROM field of an email is no longer an option. Aliases don't appear there.

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Answer 9

AZsport115 Author

Level 1

70 points

Nov 18, 2025 3:35 PM in response to AZsport115

Still looking for a solution if anybody has figured this out!

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Answer 10

AZsport115 Author

Level 1

70 points

Nov 18, 2025 4:48 PM in response to Sergey-A

Hi Sergey, thank you! I'll update as soon as I backup! When you said you tried to add missing alias addresses manually, where in settings do you do that?

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Answer 11

AZsport115 Author

Level 1

70 points

Nov 19, 2025 1:33 PM in response to Sergey-A

Thank you, I will give this a shot after I back up then update to the latest release!

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Answer 12

AZsport115 Author

Level 1

70 points

Nov 21, 2025 12:34 PM in response to Sergey-A

This put me on the right track! I went to the same place and mine only showed the primary address, not the aliases. I manually added all the aliases and restarted mail. I can now send FROM those aliases. Thank you! I'll make another reply with the solution spelled out!

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