Hello, I have 8 emails under the same domain name. One is the main email that I use, and the other 7 are using other colleagues. But recently, I found out that no matter which email I choose to send the emails, all the emails are sending out with my main email. Just an example: my main email is aaa@gmail.com, and the other one are bbb@gmail.com, ccc@gmail.com, etc., but every time I write an email using the bbb@gmail.com account, the email are sending out as aaa@gmail.com. I even tried to send a test email using the bbb@gmail.com account and sent to aaa@gmail.com, and in my inbox, I received an email from aaa@gmail.com to aaa@gmail.com Why is that? Can anyone help me, please? Thanks!