An event like this is one of the fears I had about gmail when I posted a topic asking about leaving gmail a few weeks ago (https://texags.com/forums/30/topics/3421817/). Google (and most of the tech companies) seem to be heavily cutting back on the free stuff. Last I saw, gmail had over 1.8 BILLION email accounts, so they have a lot of incentive to pull back their free offerings.
I ended up paying for a year of Proton and have been very pleased with the service. The big downside to proton is that the free tier mail only comes with 500megs of storage (that can be boosted to 1gig after you onboard with a few tasks.)
That being said, Skiff would be where I would point someone looking to escape for free right now. Free tier includes 10gigs AND a unlimited custom domain addresses. (The advantage to this is when you own the domain, you can move it to any mail service and not have to actually change your email address - you'd just have to set that inbox up again), and their UI is very slick.
I ended up paying for a year of Proton and have been very pleased with the service. The big downside to proton is that the free tier mail only comes with 500megs of storage (that can be boosted to 1gig after you onboard with a few tasks.)
That being said, Skiff would be where I would point someone looking to escape for free right now. Free tier includes 10gigs AND a unlimited custom domain addresses. (The advantage to this is when you own the domain, you can move it to any mail service and not have to actually change your email address - you'd just have to set that inbox up again), and their UI is very slick.