This question already has an answer here:
When sending mail from a different account (say firstname.lastname@example.org) than my default in Gmail (say email@example.com), when someone reply to me I can see that my firstname.lastname@example.org is mentioned in the conversation along with email@example.com.
From: firstname.lastname@example.org on behalf of email@example.com
Also, I tried to send myself mail to firstname.lastname@example.org from email@example.com (through alpha account) and when clicking the
show original in the message I can see my firstname.lastname@example.org there.
When I send mails from email@example.com I don't want the recipient to know about firstname.lastname@example.org. Is there any way to prevent that from happening other than logging out from alpha and logging in to beta?