How to use alias in a Gmail mail merge?

hi, how to set up password for alias mail ?

thanks

Is it necessary to put name and company ? It can be only the email list or only email with names

what's the benefit of using Alias Email?

Will these emails show in the main accounts 'sent' box or will it be in the alias 'sent' box?

Can i add outlook accounts with this method? If not then how can i add outlook accounts and how can i send email campaigns using outlook accounts????

hi can i use my domain?