diff --git a/crates/main/Cargo.toml b/crates/main/Cargo.toml
index dcae10a9f..39b928f37 100644
--- a/crates/main/Cargo.toml
+++ b/crates/main/Cargo.toml
@@ -46,8 +46,9 @@ s3 = ["store/s3"]
 redis = ["store/redis"]
 azure = ["store/azure"]
 enterprise = [ "jmap/enterprise", 
+               "smtp/enterprise", 
                "common/enterprise", 
                "store/enterprise", 
                "managesieve/enterprise", 
                "directory/enterprise", 
-               "spam-filter/enterprise"]
+               "spam-filter/enterprise" ]
diff --git a/tests/Cargo.toml b/tests/Cargo.toml
index e877b636a..c74fbc628 100644
--- a/tests/Cargo.toml
+++ b/tests/Cargo.toml
@@ -26,7 +26,7 @@ jmap_proto = { path = "../crates/jmap-proto" }
 imap = { path = "../crates/imap", features = ["test_mode"] }
 imap_proto = { path = "../crates/imap-proto" }
 pop3 = { path = "../crates/pop3", features = ["test_mode"] }
-smtp = { path = "../crates/smtp", features = ["test_mode"] }
+smtp = { path = "../crates/smtp", features = ["test_mode", "enterprise"] }
 common = { path = "../crates/common", features = ["test_mode", "enterprise"] }
 spam-filter = { path = "../crates/spam-filter", features = ["test_mode", "enterprise"] }
 trc = { path = "../crates/trc" }