Published on: Dec 26, 2025
Blocking all spam before we see it is tough. Email providers are reluctant to block it entirely, in case they are wrong and it s not spam. The compromise is that they send it to the Spam or Junk folder, where it can be recovered.
As the reader of that email, though, it s often easy for us to identify it as spam and say, "I never want to receive email from this sender again."
This is where the "Block Sender" feature that some email providers have, including Gmail and Fastmail, comes in.
There s a big difference, though. In Gmail, the email still ends up clogging up the Spam folder. In Fastmail, it goes straight to the Trash, so I never have to see it.
That may sound like a little thing, but when you re dealing with spam, it adds up. What s more, I think it s symbolic of Fastmail's greater commitment to fighting spam.