Spam filter performance and accuracy improvements (part 6)

Cargo.lock

@@ -7435,6 +7435,7 @@ dependencies = [
  "psl",
  "reqwest",
  "rkyv",
+ "serde",
  "sha1",
  "sha2 0.10.9",
  "smtp-proto",
@@ -7442,6 +7443,8 @@ dependencies = [
  "tokio",
  "trc",
  "types",
+ "unicode-general-category",
+ "unicode-normalization",
  "unicode-security",
  "utils",
 ]
@@ -8431,6 +8434,12 @@ version = "0.3.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5c1cb5db39152898a79168971543b1cb5020dff7fe43c8dc468b0885f5e29df5"
 
+[[package]]
+name = "unicode-general-category"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0b993bddc193ae5bd0d623b49ec06ac3e9312875fdae725a975c51db1cc1677f"
+
 [[package]]
 name = "unicode-ident"
 version = "1.0.22"