diff --git a/Cargo.lock b/Cargo.lock
index 4140dc5..f5c8336 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -804,7 +804,7 @@ dependencies = [
 [[package]]
 name = "himalaya-lib"
 version = "0.6.0"
-source = "git+https://git.sr.ht/~soywod/himalaya-lib?branch=develop#43c2b5dbde3e6f6c2e76ad36b25d123ab3098b10"
+source = "git+https://git.sr.ht/~soywod/himalaya-lib?branch=develop#7b8fb1d073b66d2f1d642df109c787ba3c31378f"
 dependencies = [
  "ammonia",
  "chrono",
@@ -822,18 +822,22 @@ dependencies = [
  "mime-msg-builder",
  "native-tls",
  "notmuch",
+ "once_cell",
  "ouroboros",
  "proc-lock",
  "rayon",
  "regex",
  "rfc2047-decoder",
  "rusqlite",
+ "rustls",
+ "rustls-native-certs",
  "shellexpand",
  "thiserror",
  "tree_magic",
  "urlencoding",
  "utf7-imap",
  "uuid",
+ "webpki-roots",
 ]
 
 [[package]]
@@ -937,6 +941,7 @@ dependencies = [
  "nom 7.1.1",
  "ouroboros",
  "regex",
+ "rustls-connector",
 ]
 
 [[package]]
@@ -1041,9 +1046,12 @@ dependencies = [
  "nom 7.1.1",
  "once_cell",
  "quoted_printable",
+ "rustls",
+ "rustls-pemfile",
  "serde",
  "socket2",
  "tokio",
+ "webpki-roots",
 ]
 
 [[package]]
@@ -1785,6 +1793,21 @@ dependencies = [
  "thiserror",
 ]
 
+[[package]]
+name = "ring"
+version = "0.16.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3053cf52e236a3ed746dfc745aa9cacf1b791d846bdaf412f60a8d7d6e17c8fc"
+dependencies = [
+ "cc",
+ "libc",
+ "once_cell",
+ "spin",
+ "untrusted",
+ "web-sys",
+ "winapi",
+]
+
 [[package]]
 name = "roff"
 version = "0.2.1"
@@ -1819,6 +1842,51 @@ dependencies = [
  "windows-sys 0.42.0",
 ]
 
+[[package]]
+name = "rustls"
+version = "0.20.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fff78fc74d175294f4e83b28343315ffcfb114b156f0185e9741cb5570f50e2f"
+dependencies = [
+ "log",
+ "ring",
+ "sct",
+ "webpki",
+]
+
+[[package]]
+name = "rustls-connector"
+version = "0.16.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9c6a18f8d10f71bce9bca6eaeb80429460e652f3bcf0381f0c5f8954abf7b3b8"
+dependencies = [
+ "log",
+ "rustls",
+ "rustls-native-certs",
+ "webpki",
+]
+
+[[package]]
+name = "rustls-native-certs"
+version = "0.6.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0167bac7a9f490495f3c33013e7722b53cb087ecbe082fb0c6387c96f634ea50"
+dependencies = [
+ "openssl-probe",
+ "rustls-pemfile",
+ "schannel",
+ "security-framework",
+]
+
+[[package]]
+name = "rustls-pemfile"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d194b56d58803a43635bdc398cd17e383d6f71f9182b9a192c127ca42494a59b"
+dependencies = [
+ "base64 0.21.0",
+]
+
 [[package]]
 name = "ryu"
 version = "1.0.11"
@@ -1847,6 +1915,16 @@ version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9c8132065adcfd6e02db789d9285a0deb2f3fcb04002865ab67d5fb103533898"
 
+[[package]]
+name = "sct"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d53dcdb7c9f8158937a7981b48accfd39a43af418591a5d008c7b22b5e1b7ca4"
+dependencies = [
+ "ring",
+ "untrusted",
+]
+
 [[package]]
 name = "security-framework"
 version = "2.7.0"
@@ -1950,6 +2028,12 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "spin"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6e63cff320ae2c57904679ba7cb63280a3dc4613885beafb148ee7bf9aa9042d"
+
 [[package]]
 name = "stacker"
 version = "0.1.15"
@@ -2199,6 +2283,12 @@ version = "0.1.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c0edd1e5b14653f783770bce4a4dabb4a5108a5370a5f5d8cfe8710c361f6c8b"
 
+[[package]]
+name = "untrusted"
+version = "0.7.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a156c684c91ea7d62626509bce3cb4e1d9ed5c4d978f7b4352658f96a4c26b4a"
+
 [[package]]
 name = "url"
 version = "2.3.1"
@@ -2326,6 +2416,35 @@ version = "0.2.83"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1c38c045535d93ec4f0b4defec448e4291638ee608530863b1e2ba115d4fff7f"
 
+[[package]]
+name = "web-sys"
+version = "0.3.60"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bcda906d8be16e728fd5adc5b729afad4e444e106ab28cd1c7256e54fa61510f"
+dependencies = [
+ "js-sys",
+ "wasm-bindgen",
+]
+
+[[package]]
+name = "webpki"
+version = "0.22.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f095d78192e208183081cc07bc5515ef55216397af48b873e5edcd72637fa1bd"
+dependencies = [
+ "ring",
+ "untrusted",
+]
+
+[[package]]
+name = "webpki-roots"
+version = "0.22.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b6c71e40d7d2c34a5106301fb632274ca37242cd0c9d3e64dbece371a40a2d87"
+dependencies = [
+ "webpki",
+]
+
 [[package]]
 name = "winapi"
 version = "0.3.9"
diff --git a/Cargo.toml b/Cargo.toml
index 954cf14..9c64cee 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -16,11 +16,22 @@ priority = "optional"
 section = "mail"
 
 [features]
+default = ["imap-backend", "smtp-sender", "native-tls"]
+
+# backends
 imap-backend = ["himalaya-lib/imap-backend"]
-smtp-sender = ["himalaya-lib/smtp-sender"]
 notmuch-backend = ["himalaya-lib/notmuch-backend"]
-vendored = ["himalaya-lib/vendored"]
-default = ["imap-backend", "smtp-sender"]
+
+# senders
+smtp-sender = ["himalaya-lib/smtp-sender"]
+
+# native tls
+native-tls = ["himalaya-lib/native-tls"]
+native-tls-vendored = ["himalaya-lib/native-tls-vendored"]
+
+# rustls
+rustls-tls = ["himalaya-lib/rustls-tls"]
+rustls-native-certs = ["himalaya-lib/rustls-native-certs"]
 
 [dev-dependencies]
 tempfile = "3.3"