fix: re-enable unicode-case feature on regex
@@ -29,7 +29,7 @@ rand = { version = "0.8", optional = true }
quoted_printable = { version = "0.4", optional = true }
base64 = { version = "0.13", optional = true }
once_cell = "1"
-regex = { version = "1", default-features = false, features = ["std"] }
+regex = { version = "1", default-features = false, features = ["std", "unicode-case"] }
# file transport
serde = { version = "1", optional = true, features = ["derive"] }
