Use the ‘Treat as an alias’ setting to manage ‘Send mail as’ account behavior

When you use Gmail's Send mail as to send messages on behalf of another account, Gmail treats your Send mail as address as an alias of your primary address.

Treat as an alias is useful when you have other email addresses that you want Gmail to treat as if they were your primary Gmail address. For example, reminder emails you send to this address would appear unread in your inbox.

In some cases you may want to add a Send As address that shouldn't be treated the same way as your primary email address. For example, if it's someone else's Gmail address, you should turn off Treat as an alias. With the setting turned off, emails you send to this address will not appear in your inbox.

The following table shows how the Treat as an alias setting affects how your emails are treated.

Treat as an alias setting checked Treat as an alias setting unchecked
Messages you send to a Send mail as address appear as unread in your Inbox. Messages you send to a Send mail as address do not appear in your Inbox.
Messages you send to a Send mail as address  also appear in your Sent Mail. Messages you send to a Send mail as address also appear in your Sent Mail.
If you receive a message from a Send mail as address and you click Reply, the To: field is filled with your primary address. If you receive a message from a Send mail as address and you click Reply, the To: field is filled with the sender’s address.
If you receive a message from a group that uses the same address as your Send mail as address, and you click Reply All, the To: field does not include the address of the group that sent the message. If you receive a message from a group that uses the same address as your Send mail as address, and you click Reply All, the To: field includes the address of the group that sent the message.
Example: Ben is Mary’s personal assistant. Ben often needs to send email on behalf of Mary, and he uses Send mail as to send emails for Mary from her mary@yourcompany.com account using his ben@yourcompany.com account. Because Ben and Mary email each other often, it’s confusing for Ben to see his emails to Mary appear as unread in his Inbox. Also, when Ben composes a reply to Mary’s email, the To: field shows his primary email address.

In this case, Ben should turn off the default Treat as an alias setting. With Treat as an alias turned off, Ben’s emails to Mary will appear in his Sent mail and not in his Inbox, and when he composes a reply to Mary’s email, the To: field will show Mary’s primary email address.

To change this behavior:

  1. Sign in to Gmail.
  2. Click and click Settings.
  3. Go to the Accounts tab.
  4. Under Send mail as, find the email address that you want to configure and click edit info.


     
  5. Deselect Treat as an alias.


     
  6. Click Save Changes.

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