Yes, earthlink offers Trellix. A caveat, though -- I've been with earthink as my ISP almost since I started going online and they've been great for that. OTOH, their support for their free webspace - which is what they have Trellix available for - is basically nonexistent. I say "basically" because someone somewhere may have gotten some support, but I don't know of anyone. When I tried, I got sent in a literal circle by form emails, ending up getting sent back to the first place I'd asked for help. Never did hear from an actual person. Completely different from what I've found with their support for other services. Quite a few earthlink Trellix users ended up at the globalscape CSB forum looking for help.
If you try the other program you mentioned, let us know what you think.