I have two things. The amount of times I've tried to sign up with my protonmail account to a service and it doesn't pass validation simply because it's a proto

I have two things. The amount of times I've tried to sign up with my protonmail account to a service and it doesn't pass validation simply because it's a protonmail account (not a gmail, outlook, hotmail or aol apparently). makes me wish everyone did follow the RFC. I actually emailed a service one time, and they responded that it's due to protonmail usually being associated with shady stuff wtf. The second. I had to implement an email validator at one of my previous jobs, and fell down the RFC rabbit hole. Not only did I have to follow the RFC as per my bosses request, but I also had make sure that Amazon SES allowed it. Came out of the office wanting to just walk out onto the road. The weird things that not only email servers allow, but also, what do email clients allow.