Add existing email alias to Outlook for Mac

Question

Add existing email alias to Outlook for Mac

Linda Handelsman 0

I already have an email alias for my Google business account, and I need to add it to my Outlook for Mac app. Can someone provide simple steps to do this?

I think my app version is for home, and I think its the New Outlook, so I'm selecting that tag, but it doesn't specify either of those things in my About Outlook window.

Thanks!

Linda Handelsman 0 Reputation points

2026-10-11T12:10:44.9033333+00:00

AI bot replied:

If the alias is already part of the same Google account, it usually does not get added to Outlook for Mac as a separate account. Outlook for Mac adds the Google account mailbox itself. For New Outlook for Mac, add the Google account like this: In Outlook for Mac, select Outlook > Settings. In the side panel, select Accounts. Select + Add Account. Enter the Google account email address and select Continue. Follow the prompts. If prompted in the browser, allow Outlook to access the mail, contacts, and calendars for that Google account. Select Done. [---]

The AI answer was not helpful. The process of "follow the prompts" required me to sign into both Microsoft and Google accounts, and then it wouldn't add the alias after all that.
Stefan Blom 357.6K Reputation points MVP Volunteer Moderator

2026-10-11T13:53:54.3966667+00:00

The AI answer was not helpful.

Since the AI reply did not help, you can reject it (since you started the thread, that is your right).
Linda Handelsman 0 Reputation points

2026-10-13T12:26:23.08+00:00

I'm still hoping someone can tell me an easy way to add an existing email alias to my Outlook platform.
Linda Handelsman 0 Reputation points

2026-11-06T15:08:03.4333333+00:00

I have Outlook version 16.114.4 (26110224)

When I tried to Add Account, I first entered my alias email, went through several screens of signing in to Google Apps and Services, and it eventually told me "email addresses do not match" and asked if I wanted to add the non-alias address! So I tried again from the point of signing in, this time using the alias email address, and it said it couldn't sign me in. Last I tried entering my non-alias address at the start, and of course ended up at the end of the process with a screen telling me that address had already been added. So I'm stuck.
Linda Handelsman 0 Reputation points

2026-11-06T15:10:06.7866667+00:00

I should add that this alias email already appears in this account when viewed in the Gmail app in my phone. I'm trying to get it to appear on my desktop, where I prefer to use the Outlook app.
Linda Handelsman 0 Reputation points

2026-11-06T15:10:43.72+00:00

I should add that this alias email already appears in this account when viewed in the Gmail app in my phone. I'm trying to get it to appear on my desktop, where I prefer to use the Outlook app.
Hornblower409 19,070 Reputation points

2026-11-07T19:07:11.9666667+00:00
@Linda Handelsman said

"email addresses do not match" and asked if I wanted to add the non-alias address

A Google Workspace email alias normally delivers into the primary Google mailbox, but it cannot be used to sign in as if it were a separate Google account. That would explain both the “email addresses do not match” message and why signing in with the alias fails.

What are you trying to accomplish in Outlook:

Receive messages sent to the alias, or

Select the alias in the From field and send messages from it?

If you only need to receive mail, messages sent to the alias should already appear in the primary Google account that is added to Outlook. Please send a test message to the alias and check whether it appears there.

If you need to send from the alias, that is a different issue. Please confirm whether, in Gmail on the web, the alias appears under Settings > See all settings > Accounts and Import > Send mail as, and whether you can successfully send from it there. That will confirm the Google Workspace side before determining whether Outlook for Mac can expose the same sender address.

1 answer

Your answer

Linda Handelsman 0 Reputation points

2026-10-11T12:10:44.9033333+00:00

AI bot replied:

If the alias is already part of the same Google account, it usually does not get added to Outlook for Mac as a separate account. Outlook for Mac adds the Google account mailbox itself. For New Outlook for Mac, add the Google account like this: In Outlook for Mac, select Outlook > Settings. In the side panel, select Accounts. Select + Add Account. Enter the Google account email address and select Continue. Follow the prompts. If prompted in the browser, allow Outlook to access the mail, contacts, and calendars for that Google account. Select Done. [---]

The AI answer was not helpful. The process of "follow the prompts" required me to sign into both Microsoft and Google accounts, and then it wouldn't add the alias after all that.
Stefan Blom 357.6K Reputation points MVP Volunteer Moderator

2026-10-11T13:53:54.3966667+00:00

The AI answer was not helpful.

Since the AI reply did not help, you can reject it (since you started the thread, that is your right).
Linda Handelsman 0 Reputation points

2026-10-13T12:26:23.08+00:00

I'm still hoping someone can tell me an easy way to add an existing email alias to my Outlook platform.
Linda Handelsman 0 Reputation points

2026-11-06T15:08:03.4333333+00:00

I have Outlook version 16.114.4 (26110224)

When I tried to Add Account, I first entered my alias email, went through several screens of signing in to Google Apps and Services, and it eventually told me "email addresses do not match" and asked if I wanted to add the non-alias address! So I tried again from the point of signing in, this time using the alias email address, and it said it couldn't sign me in. Last I tried entering my non-alias address at the start, and of course ended up at the end of the process with a screen telling me that address had already been added. So I'm stuck.
Linda Handelsman 0 Reputation points

2026-11-06T15:10:06.7866667+00:00

I should add that this alias email already appears in this account when viewed in the Gmail app in my phone. I'm trying to get it to appear on my desktop, where I prefer to use the Outlook app.
Linda Handelsman 0 Reputation points

2026-11-06T15:10:43.72+00:00

I should add that this alias email already appears in this account when viewed in the Gmail app in my phone. I'm trying to get it to appear on my desktop, where I prefer to use the Outlook app.
Hornblower409 19,070 Reputation points

2026-11-07T19:07:11.9666667+00:00

@Linda Handelsman said

"email addresses do not match" and asked if I wanted to add the non-alias address

A Google Workspace email alias normally delivers into the primary Google mailbox, but it cannot be used to sign in as if it were a separate Google account. That would explain both the “email addresses do not match” message and why signing in with the alias fails.

What are you trying to accomplish in Outlook:

Receive messages sent to the alias, or

Select the alias in the From field and send messages from it?

If you only need to receive mail, messages sent to the alias should already appear in the primary Google account that is added to Outlook. Please send a test message to the alias and check whether it appears there.

If you need to send from the alias, that is a different issue. Please confirm whether, in Gmail on the web, the alias appears under Settings > See all settings > Accounts and Import > Send mail as, and whether you can successfully send from it there. That will confirm the Google Workspace side before determining whether Outlook for Mac can expose the same sender address.

Answer 1

Diane Poremsky MVP 17,651 MVP Volunteer Moderator

What version does About Outlook say you have?

What happens when you try to Add Account? Any error messages? (It's in Outlook app menu > Settings)

Enter your address and password and Outlook should do the rest - it will bring up the google dialog to sign in and you need to give permission for Outlook to access it. Enabling the permissions is required since google uses oAuth2.

0 comments