I use sanebox.com for approximately this behavior, and I'm happy with their service.
Sanebox works by logging into my mail server, not replacing it. I have three "send" addresses, and I've learned the hard way that I must authenticate through the SMTP server that goes with the address I'm claiming, or risk being classified as spam by my recipients' email servers. Of course, various email programs allow one to assert any return address one likes. It is a mistake to use this feature. Particularly if one is more tech savvy than one's recipients, it is all too easy to blame them when your mail goes to spam. No, it's your fault. I was that idiot.
Similarly, Qualtrics will send out surveys for colleges and businesses, but won't use the business domain without extra steps. Those surveys don't get read. My college was making this mistake, till I pointed it out. Qualtrics has clear instructions on fixing this.
So Hey is clearly not ready for market, if it can't support its users correctly using business domains for business matters. This isn't a matter of waiting till one's employer signs on with Hey; anyone using Hey who is employed is going to hit this issue.
Sanebox works by logging into my mail server, not replacing it. I have three "send" addresses, and I've learned the hard way that I must authenticate through the SMTP server that goes with the address I'm claiming, or risk being classified as spam by my recipients' email servers. Of course, various email programs allow one to assert any return address one likes. It is a mistake to use this feature. Particularly if one is more tech savvy than one's recipients, it is all too easy to blame them when your mail goes to spam. No, it's your fault. I was that idiot.
Similarly, Qualtrics will send out surveys for colleges and businesses, but won't use the business domain without extra steps. Those surveys don't get read. My college was making this mistake, till I pointed it out. Qualtrics has clear instructions on fixing this.
So Hey is clearly not ready for market, if it can't support its users correctly using business domains for business matters. This isn't a matter of waiting till one's employer signs on with Hey; anyone using Hey who is employed is going to hit this issue.