diff --git a/.gitignore b/.gitignore
index 3532c8ca..e25825b3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,10 @@
 target/
 local/
 _site/
-result
\ No newline at end of file
+result
+.bloop
+project/**/project
+metals.sbt
+.vscode
+.metals
+.bsp
diff --git a/modules/common/src/main/scala/emil/builder/package.scala b/modules/common/src/main/scala/emil/builder/package.scala
index fb5bb827..ca9c7332 100644
--- a/modules/common/src/main/scala/emil/builder/package.scala
+++ b/modules/common/src/main/scala/emil/builder/package.scala
@@ -57,6 +57,13 @@ package builder {
       mail.mapMailHeader(_.mapRecipients(_.addBccs(mas)))
   }
 
+  case class ReplyTo[F[_]](ma: MailAddress) extends Trans[F] {
+    def apply(mail: Mail[F]): Mail[F] =
+      mail.mapMailHeader(_.copy(replyTo = Some(ma)))
+  }
+
+  object ReplyTo extends MailAddressHelper[ReplyTo]
+
   case class Subject[F[_]](text: String) extends Trans[F] {
     def apply(mail: Mail[F]): Mail[F] =
       mail.mapMailHeader(_.withSubject(text))
diff --git a/modules/javamail/src/main/scala/emil/javamail/conv/BasicEncode.scala b/modules/javamail/src/main/scala/emil/javamail/conv/BasicEncode.scala
index ffc22b80..7a20a8f3 100644
--- a/modules/javamail/src/main/scala/emil/javamail/conv/BasicEncode.scala
+++ b/modules/javamail/src/main/scala/emil/javamail/conv/BasicEncode.scala
@@ -137,6 +137,9 @@ trait BasicEncode {
         Message.RecipientType.BCC,
         header.recipients.bcc.map(ca.convert).map(a => a.asInstanceOf[Address]).toArray
       )
+      msg.setReplyTo(
+        header.replyTo.map(ca.convert).map(a => a.asInstanceOf[Address]).toArray
+      )
 
       if (header.flags.nonEmpty) {
         val flags = new Flags()