If you have an email ending in @hotmail.com, @live.com or @outlook.com (or any other Microsoft-related domain), please consider changing it to another email provider; Microsoft decided to instantly block the server's IP, so emails can't be sent to these addresses.
If you use an @yahoo.com email or any related Yahoo services, they have blocked us also due to "user complaints"
sites that don't let you appeal bans (or apply bans without warning)
This is something I've noticed in regards to discord,its actually really hard by design to appeal a ban there (it's only happened to me once though)
In general I take for it granted that most sites I've been on allow appeals,I've been on sites where they ban you for no reason and any attempt contact them is ignored.