I have had two clients over the years who run their own domains, and wanted me to use an e-mail address within that domain. They also insisted that all of my o

I have had two clients over the years who run their own domains, and wanted me to use an e-mail address within that domain. They also insisted that all of my outgoing e-mail be under their domains, rather than the lerner.co.il domain I've been using for 20 years. I have all of my GMail forwarded to my regular account, so it's mostly just a bother with sending out messages. Twice in one week, I responded to e-mail from Thunderbird, rather than GMail, and thus ended up exposing the fact that I'm a consultant rather than an employee of the company. The client went totally ballistic on me over this. I'm pretty sure that there's a way for me to configure Thunderbird and/or Gmail such that I can use Thunderbird as a front-end client to their Gmail domain, but I didn't bother. Mostly, I just found it to be a foolish and controlling way for them to run their businesses, and hide the fact that I'm a consultant (when the simplest search on Google or LinkedIn would reveal otherwise).