diff --git a/Cargo.lock b/Cargo.lock
index b887896a7..238828b9b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1374,13 +1374,20 @@ dependencies = [
 
 [[package]]
 name = "email-encoding"
-version = "0.1.0"
+version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6690291166824e467790ac08ba42f241791567e8337bbf00c5a6e87889629f98"
+checksum = "75b91dddc343e7eaa27f9764e5bffe57370d957017fdd75244f5045e829a8441"
 dependencies = [
  "base64",
+ "memchr",
 ]
 
+[[package]]
+name = "email_address"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8684b7c9cb4857dfa1e5b9629ef584ba618c9b93bae60f58cb23f4f271d0468e"
+
 [[package]]
 name = "encoding_rs"
 version = "0.8.31"
@@ -2175,13 +2182,14 @@ checksum = "884e2677b40cc8c339eaefcb701c32ef1fd2493d71118dc0ca4b6a736c93bd67"
 
 [[package]]
 name = "lettre"
-version = "0.10.0-rc.6"
+version = "0.10.0-rc.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2f6c70001f7ee6c93b6687a06607c7a38f9a7ae460139a496c23da21e95bc289"
+checksum = "0f7e87d9d44162eea7abd87b1a7540fcb10d5e58e8bb4f173178f3dc6e453944"
 dependencies = [
  "async-trait",
  "base64",
  "email-encoding",
+ "email_address",
  "fastrand",
  "futures-io",
  "futures-util",
@@ -2192,10 +2200,10 @@ dependencies = [
  "nom",
  "once_cell",
  "quoted_printable",
- "regex",
  "rustls 0.20.6",
  "rustls-pemfile 1.0.0",
  "serde",
+ "socket2",
  "tokio",
  "tokio-rustls 0.23.4",
  "tracing",
diff --git a/crates/config/Cargo.toml b/crates/config/Cargo.toml
index b04188458..22824c575 100644
--- a/crates/config/Cargo.toml
+++ b/crates/config/Cargo.toml
@@ -22,7 +22,7 @@ serde = { version = "1.0.137", features = ["derive"] }
 serde_with = { version = "1.14.0", features = ["hex", "chrono"] }
 serde_json = "1.0.81"
 sqlx = { version = "0.5.13", features = ["runtime-tokio-rustls", "postgres"] }
-lettre = { version = "0.10.0-rc.6", default-features = false, features = ["serde", "builder"] }
+lettre = { version = "0.10.0-rc.7", default-features = false, features = ["serde", "builder"] }
 
 rand = "0.8.5"
 rsa = { git = "https://github.com/sandhose/RSA.git", branch = "bump-pkcs" }
diff --git a/crates/email/Cargo.toml b/crates/email/Cargo.toml
index b4fe6acd9..b606a69ce 100644
--- a/crates/email/Cargo.toml
+++ b/crates/email/Cargo.toml
@@ -18,6 +18,6 @@ mas-templates = { path = "../templates" }
 mas-config = { path = "../config" }
 
 [dependencies.lettre]
-version = "0.10.0-rc.6"
+version = "0.10.0-rc.7"
 default-features = false
 features = ["tokio1-rustls-tls", "hostname", "builder", "tracing", "pool", "smtp-transport", "sendmail-transport"]
diff --git a/crates/handlers/Cargo.toml b/crates/handlers/Cargo.toml
index 623ae59b7..551b8cf25 100644
--- a/crates/handlers/Cargo.toml
+++ b/crates/handlers/Cargo.toml
@@ -25,7 +25,7 @@ axum-macros = "0.2.2"
 axum-extra = { version = "0.3.3", features = ["cookie-private"] }
 
 # Emails
-lettre = { version = "0.10.0-rc.6", default-features = false, features = ["builder"] }
+lettre = { version = "0.10.0-rc.7", default-features = false, features = ["builder"] }
 
 # Database access
 sqlx = { version = "0.5.13", features = ["runtime-tokio-rustls", "postgres"] }