Replying with an alternate e-mail that uses the same gmail account

[KC Nick M]

I work for several businesses and have multiple e-mail addresses that all
forward to my personal gmail account. I have dealt with incoming mail
forwarding to the proper folder depending on the e-mail address the sender
uses, but when I reply I either have to type the right address into the
"From" box (pain) or it shows up as coming from my gmail account even though
they sent it to one of my aliases.

Can I set up a rule that all replies to e-mails sent to an alias use the
same alias for the response? Ideally I'd like to be able to have an e-mail
conversation appear to the other person as all coming from the appropriate
professional address and they never see my gmail address. Thanks!

 

[Brian Tillman [MVP-Outlook]]

I work for several businesses and have multiple e-mail addresses that all
forward to my personal gmail account. I have dealt with incoming mail
forwarding to the proper folder depending on the e-mail address the sender
uses, but when I reply I either have to type the right address into the
"From" box (pain) or it shows up as coming from my gmail account even though
they sent it to one of my aliases.

That's not what the From field is for. Use the From only when connected to an
Exchange server. To change the sending address, you need separate accounts,
each with one of the sending addresses you want your recipients to see.
However, with gmail as your SMTP server, it's pointless because gmail rewrites
the sender address to always be the address of the gmail account. It's one of
their antispam techniques.

Can I set up a rule that all replies to e-mails sent to an alias use the
same alias for the response?

You can't. There is no such rule.