Hi Rajiv! I highly suggest going with domains that include your company name, since it builds more trust and, in the long run, prevents people from reporting your emails as spam. Prospects are less likely to click or engage with emails that have a different name from the company's name.
For this, you can use different endings (like subtello.ai, subtello.com, subtello.net, etc.). I also have a positive experience creating domains like email.subtello.ai (as an example).
I've found that anything suggesting this is cold outreach only (like getsoftware, outreach, etc.) is more spammy.
So go with the company name for sure.
