Custom reply addresses on aliases

[Steve]

I want to create a professional looking address for business contacts
such as a permanent address on bigfoot.com. I can forward my
bigfoot.com address to an e4ward alias and get the mail at gmail.

The only problem is the From address, when I reply to a bigfoot.com
message, is the long, unsightly e4ward alias instead of the nice
bigfoot.com address.

If we could type in a custom 'From' address for each alias, it would
allow for correspondence with professional contacts using a
professional address.

The alternative is to bypass e4ward and send the bigfoot.com mail
directly to gmail and configure the reply so as not to give away the
gmail address.

Steve