diff --git a/src/main/java/io/github/dgroup/mbox4j/Msg.java b/src/main/java/io/github/dgroup/mbox4j/Msg.java
index 0065573..5fb98bc 100644
--- a/src/main/java/io/github/dgroup/mbox4j/Msg.java
+++ b/src/main/java/io/github/dgroup/mbox4j/Msg.java
@@ -25,6 +25,7 @@
 package io.github.dgroup.mbox4j;
 
 import java.io.File;
+import java.util.Collection;
 import java.util.Set;
 import org.cactoos.Text;
 
@@ -77,5 +78,5 @@ public interface Msg {
      * The attachments within the email.
      * @return The attachments.
      */
-    Iterable<File> attachments();
+    Collection<File> attachments();
 }
diff --git a/src/main/java/io/github/dgroup/mbox4j/msg/FakeMsg.java b/src/main/java/io/github/dgroup/mbox4j/msg/FakeMsg.java
index d16c091..4796e6a 100644
--- a/src/main/java/io/github/dgroup/mbox4j/msg/FakeMsg.java
+++ b/src/main/java/io/github/dgroup/mbox4j/msg/FakeMsg.java
@@ -26,37 +26,41 @@
 
 import io.github.dgroup.mbox4j.Msg;
 import java.io.File;
+import java.util.Collection;
 import java.util.Set;
 import org.cactoos.Text;
+import org.cactoos.collection.CollectionOf;
 
 /**
  * The fake implementation of {@link Msg} for unit testing purposes.
  *
  * @since 0.1.0
  * @checkstyle MemberNameCheck (200 lines)
+ * @checkstyle ParameterNameCheck (200 lines)
+ * @checkstyle ParameterNumberCheck (200 lines)
  */
-@SuppressWarnings("PMD.ShortMethodName")
+@SuppressWarnings({"PMD.ShortMethodName", "PMD.AvoidFieldNameMatchingMethodName"})
 public final class FakeMsg implements Msg {
 
     /**
      * The sender's email address.
      */
-    private final Text frm;
+    private final Text from;
 
     /**
      * The target email recipients.
      */
-    private final Set<Text> recipients;
+    private final Set<Text> to;
 
     /**
      * The target email recipients for the `CC` (carbon copy).
      */
-    private final Set<Text> copy;
+    private final Set<Text> cc;
 
     /**
      * The target email recipients for the `BCC` (blind carbon copy).
      */
-    private final Set<Text> bcopy;
+    private final Set<Text> bcc;
 
     /**
      * The subject of the email message.
@@ -71,50 +75,67 @@ public final class FakeMsg implements Msg {
     /**
      * The message attachments.
      */
-    private final Iterable<File> attachs;
+    private final Collection<File> attachments;
 
     /**
      * Ctor.
-     * @param frm The sender's email address.
-     * @param recipients The target email recipients.
-     * @param copy The target email recipients for the `CC` (carbon copy).
-     * @param bcopy The target email recipients for the `BCC` (blind carbon copy).
+     * @param from The sender's email address.
+     * @param to The target email recipients.
+     * @param cc The target email recipients for the `CC` (carbon copy).
+     * @param bcc The target email recipients for the `BCC` (blind carbon copy).
      * @param subj The subject of the email message.
-     * @param content The message content.
-     * @param attachs The message attachments.
+     * @param body The message content.
+     * @param attachments The message attachments.
      * @checkstyle ParameterNumberCheck (5 lines)
      */
     public FakeMsg(
-        final Text frm, final Set<Text> recipients, final Set<Text> copy, final Set<Text> bcopy,
-        final Text subj, final Text content, final Iterable<File> attachs
+        final Text from, final Set<Text> to, final Set<Text> cc, final Set<Text> bcc,
+        final Text subj, final Text body, final File... attachments
     ) {
-        this.frm = frm;
-        this.recipients = recipients;
-        this.copy = copy;
-        this.bcopy = bcopy;
+        this(from, to, cc, bcc, subj, body, new CollectionOf<>(attachments));
+    }
+
+    /**
+     * Ctor.
+     * @param from The sender's email address.
+     * @param to The target email recipients.
+     * @param cc The target email recipients for the `CC` (carbon copy).
+     * @param bcc The target email recipients for the `BCC` (blind carbon copy).
+     * @param subj The subject of the email message.
+     * @param body The message content.
+     * @param attachments The message attachments.
+     */
+    public FakeMsg(
+        final Text from, final Set<Text> to, final Set<Text> cc, final Set<Text> bcc,
+        final Text subj, final Text body, final Collection<File> attachments
+    ) {
+        this.from = from;
+        this.to = to;
+        this.cc = cc;
+        this.bcc = bcc;
         this.subj = subj;
-        this.content = content;
-        this.attachs = attachs;
+        this.content = body;
+        this.attachments = attachments;
     }
 
     @Override
     public Text from() {
-        return this.frm;
+        return this.from;
     }
 
     @Override
     public Set<Text> to() {
-        return this.recipients;
+        return this.to;
     }
 
     @Override
     public Set<Text> cc() {
-        return this.copy;
+        return this.cc;
     }
 
     @Override
     public Set<Text> bcc() {
-        return this.bcopy;
+        return this.bcc;
     }
 
     @Override
@@ -128,8 +149,7 @@ public Text body() {
     }
 
     @Override
-    public Iterable<File> attachments() {
-        return this.attachs;
+    public Collection<File> attachments() {
+        return this.attachments;
     }
-
 }
diff --git a/src/main/java/io/github/dgroup/mbox4j/msg/MsgEnvelope.java b/src/main/java/io/github/dgroup/mbox4j/msg/MsgEnvelope.java
index 9d186c6..1f3e3e3 100644
--- a/src/main/java/io/github/dgroup/mbox4j/msg/MsgEnvelope.java
+++ b/src/main/java/io/github/dgroup/mbox4j/msg/MsgEnvelope.java
@@ -26,6 +26,7 @@
 
 import io.github.dgroup.mbox4j.Msg;
 import java.io.File;
+import java.util.Collection;
 import java.util.Objects;
 import java.util.Set;
 import org.cactoos.Text;
@@ -85,7 +86,7 @@ public final Text body() {
     }
 
     @Override
-    public final Iterable<File> attachments() {
+    public final Collection<File> attachments() {
         return this.origin.attachments();
     }
 
diff --git a/src/main/java/io/github/dgroup/mbox4j/msg/MsgOf.java b/src/main/java/io/github/dgroup/mbox4j/msg/MsgOf.java
index 6381c70..525379c 100644
--- a/src/main/java/io/github/dgroup/mbox4j/msg/MsgOf.java
+++ b/src/main/java/io/github/dgroup/mbox4j/msg/MsgOf.java
@@ -26,9 +26,11 @@
 
 import io.github.dgroup.mbox4j.Msg;
 import java.io.File;
+import java.util.Collection;
 import java.util.Collections;
 import java.util.Set;
 import org.cactoos.Text;
+import org.cactoos.collection.CollectionOf;
 import org.cactoos.iterable.Mapped;
 import org.cactoos.set.SetOf;
 import org.cactoos.text.TextOf;
@@ -37,6 +39,8 @@
  * The immutable email message.
  *
  * @since 0.1.0
+ * @checkstyle ParameterNameCheck (200 lines)
+ * @checkstyle ParameterNumberCheck (200 lines)
  */
 @SuppressWarnings("PMD.ShortMethodName")
 public final class MsgOf extends MsgEnvelope {
@@ -47,8 +51,6 @@ public final class MsgOf extends MsgEnvelope {
      * @param to The target email recipients.
      * @param subj The subject of the email message.
      * @param body The message content.
-     * @checkstyle ParameterNameCheck (5 lines)
-     * @checkstyle ParameterNumberCheck (5 lines)
      */
     public MsgOf(final String from, final String to, final String subj, final String body) {
         this(
@@ -71,9 +73,6 @@ public MsgOf(final String from, final String to, final String subj, final String
      * @param subj The subject of the email message.
      * @param body The message content.
      * @param attachments The message attachments.
-     * @checkstyle ParameterNameCheck (10 lines)
-     * @checkstyle ParameterNumberCheck (5 lines)
-     * @checkstyle AnonInnerLengthCheck (30 lines)
      */
     public MsgOf(
         final String from, final Set<String> to, final Set<String> cc, final Set<String> bcc,
@@ -99,13 +98,28 @@ public MsgOf(
      * @param subj The subject of the email message.
      * @param body The message content.
      * @param attachments The message attachments.
-     * @checkstyle ParameterNameCheck (10 lines)
-     * @checkstyle ParameterNumberCheck (5 lines)
-     * @checkstyle AnonInnerLengthCheck (30 lines)
      */
     public MsgOf(
         final Text from, final Set<Text> to, final Set<Text> cc, final Set<Text> bcc,
         final Text subj, final Text body, final Iterable<File> attachments
+    ) {
+        this(from, to, cc, bcc, subj, body, new CollectionOf<>(attachments));
+    }
+
+    /**
+     * Ctor.
+     * @param from The sender's email address.
+     * @param to The target email recipients.
+     * @param cc The target email recipients for the `CC` (carbon copy).
+     * @param bcc The target email recipients for the `BCC` (blind carbon copy).
+     * @param subj The subject of the email message.
+     * @param body The message content.
+     * @param attachments The message attachments.
+     * @checkstyle AnonInnerLengthCheck (30 lines)
+     */
+    private MsgOf(
+        final Text from, final Set<Text> to, final Set<Text> cc, final Set<Text> bcc,
+        final Text subj, final Text body, final Collection<File> attachments
     ) {
         super(
             new Msg() {
@@ -140,7 +154,7 @@ public Text body() {
                 }
 
                 @Override
-                public Iterable<File> attachments() {
+                public Collection<File> attachments() {
                     return attachments;
                 }
             }
diff --git a/src/main/java/io/github/dgroup/mbox4j/outbox/javax/MimeMsg.java b/src/main/java/io/github/dgroup/mbox4j/outbox/javax/MimeMsg.java
index c959048..5b66bc2 100644
--- a/src/main/java/io/github/dgroup/mbox4j/outbox/javax/MimeMsg.java
+++ b/src/main/java/io/github/dgroup/mbox4j/outbox/javax/MimeMsg.java
@@ -25,10 +25,17 @@
 package io.github.dgroup.mbox4j.outbox.javax;
 
 import io.github.dgroup.mbox4j.Msg;
+import java.io.File;
+import javax.activation.DataHandler;
+import javax.activation.DataSource;
+import javax.activation.FileDataSource;
 import javax.mail.Message;
+import javax.mail.Multipart;
 import javax.mail.Session;
 import javax.mail.internet.InternetAddress;
+import javax.mail.internet.MimeBodyPart;
 import javax.mail.internet.MimeMessage;
+import javax.mail.internet.MimeMultipart;
 import org.cactoos.BiFunc;
 
 /**
@@ -36,8 +43,6 @@
  *  from {@link Msg}.
  *
  * @since 0.1.0
- * @todo #/DEV Add attachments to the {@link javax.mail.Message}.
- *  For now it sends the 'body' only thus files are skipped.
  */
 public final class MimeMsg implements BiFunc<Session, Msg, Message> {
 
@@ -50,6 +55,17 @@ public Message apply(final Session session, final Msg msg) throws Exception {
         email.setRecipients(Message.RecipientType.BCC, new Addresses(msg.bcc()).value());
         email.setSubject(msg.subject().asString());
         email.setText(msg.body().asString());
+        if (!msg.attachments().isEmpty()) {
+            final Multipart multipart = new MimeMultipart();
+            for (final File attachment : msg.attachments()) {
+                final MimeBodyPart part = new MimeBodyPart();
+                final DataSource source = new FileDataSource(attachment);
+                part.setDataHandler(new DataHandler(source));
+                part.setFileName(attachment.getName());
+                multipart.addBodyPart(part);
+            }
+            email.setContent(multipart);
+        }
         return email;
     }
 }
diff --git a/src/test/java/io/github/dgroup/mbox4j/outbox/javax/JavaxMailOutboxTestIT.java b/src/test/java/io/github/dgroup/mbox4j/outbox/javax/JavaxMailOutboxTestIT.java
index fc6f88d..03dd04e 100644
--- a/src/test/java/io/github/dgroup/mbox4j/outbox/javax/JavaxMailOutboxTestIT.java
+++ b/src/test/java/io/github/dgroup/mbox4j/outbox/javax/JavaxMailOutboxTestIT.java
@@ -29,6 +29,10 @@
 import io.github.dgroup.mbox4j.msg.MsgOf;
 import io.github.dgroup.term4j.arg.ArgNotFoundException;
 import io.github.dgroup.term4j.arg.PropOf;
+import java.io.File;
+import java.util.Collections;
+import java.util.Set;
+import org.cactoos.set.SetOf;
 import org.junit.Test;
 
 /**
@@ -36,6 +40,7 @@
  *
  * @since 0.1.0
  * @checkstyle JavadocMethodCheck (500 lines)
+ * @checkstyle LocalFinalVariableNameCheck (500 lines)
  */
 @SuppressWarnings("PMD.AvoidDuplicateLiterals")
 public final class JavaxMailOutboxTestIT {
@@ -48,15 +53,15 @@ public final class JavaxMailOutboxTestIT {
      */
     @Test
     public void sendFromYandexAccount() throws EmailException, ArgNotFoundException {
+        final String from = new PropOf("LL.yandex.user").value();
+        final Set<String> to = new SetOf<>(new PropOf("LL.yandex.to.user").value());
+        final Set<String> cc = Collections.emptySet();
+        final Set<String> bcc = Collections.emptySet();
+        final Set<File> attachments = new SetOf<>(new File(".gitignore"), new File(".pdd"));
         new JavaxMailOutbox(
             new YandexOutgoingSmtpProperties()
         ).send(
-            new MsgOf(
-                new PropOf("LL.yandex.user").value(),
-                new PropOf("LL.yandex.to.user").value(),
-                "Testing subj",
-                "I'm simple and i know it."
-            )
+            new MsgOf(from, to, cc, bcc, "Testing subj", "I'm simple and i know it.", attachments)
         );
     }
 }