feat(mailer-smtp): implement in-process SMTP server and management IPC integration

rust/Cargo.lock

@@ -1005,6 +1005,7 @@ name = "mailer-bin"
 version = "0.1.0"
 dependencies = [
  "clap",
+ "dashmap",
  "hickory-resolver 0.25.2",
  "mailer-core",
  "mailer-security",
@@ -1068,15 +1069,23 @@ dependencies = [
 name = "mailer-smtp"
 version = "0.1.0"
 dependencies = [
+ "base64",
  "bytes",
  "dashmap",
  "hickory-resolver 0.25.2",
  "mailer-core",
+ "mailer-security",
+ "regex",
+ "rustls",
+ "rustls-pemfile",
+ "rustls-pki-types",
  "serde",
+ "serde_json",
  "thiserror",
  "tokio",
  "tokio-rustls",
  "tracing",
+ "uuid",
 ]
 
 [[package]]
@@ -1491,6 +1500,15 @@ dependencies = [
  "zeroize",
 ]
 
+[[package]]
+name = "rustls-pemfile"
+version = "2.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dce314e5fee3f39953d46bb63bb8a46d40c2f8fb7cc5a3b6cab2bde9721d6e50"
+dependencies = [
+ "rustls-pki-types",
+]
+
 [[package]]
 name = "rustls-pki-types"
 version = "1.14.0"