diff --git a/_modules/index.html b/_modules/index.html
index 3b38a22..ddc950f 100644
--- a/_modules/index.html
+++ b/_modules/index.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>Overview: module code &mdash; parsedmarc 3.7.2 documentation</title>
+  <title>Overview: module code &mdash; parsedmarc 3.7.3 documentation</title>
   
 
   
@@ -56,7 +56,7 @@
             
             
               <div class="version">
-                3.7.2
+                3.7.3
               </div>
             
           
@@ -177,7 +177,7 @@
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'../',
-            VERSION:'3.7.2',
+            VERSION:'3.7.3',
             LANGUAGE:'None',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
diff --git a/_modules/parsedmarc.html b/_modules/parsedmarc.html
index eadfa86..3a39b27 100644
--- a/_modules/parsedmarc.html
+++ b/_modules/parsedmarc.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>parsedmarc &mdash; parsedmarc 3.7.2 documentation</title>
+  <title>parsedmarc &mdash; parsedmarc 3.7.3 documentation</title>
   
 
   
@@ -56,7 +56,7 @@
             
             
               <div class="version">
-                3.7.2
+                3.7.3
               </div>
             
           
@@ -188,7 +188,7 @@
 <span class="kn">import</span> <span class="nn">dateparser</span>
 <span class="kn">import</span> <span class="nn">mailparser</span>
 
-<span class="n">__version__</span> <span class="o">=</span> <span class="s2">&quot;3.7.2&quot;</span>
+<span class="n">__version__</span> <span class="o">=</span> <span class="s2">&quot;3.7.3&quot;</span>
 
 <span class="n">logger</span> <span class="o">=</span> <span class="n">logging</span><span class="o">.</span><span class="n">getLogger</span><span class="p">(</span><span class="vm">__name__</span><span class="p">)</span>
 <span class="n">logger</span><span class="o">.</span><span class="n">setLevel</span><span class="p">(</span><span class="n">logging</span><span class="o">.</span><span class="n">INFO</span><span class="p">)</span>
@@ -1627,7 +1627,7 @@
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'../',
-            VERSION:'3.7.2',
+            VERSION:'3.7.3',
             LANGUAGE:'None',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
diff --git a/_modules/parsedmarc/elastic.html b/_modules/parsedmarc/elastic.html
index 957cf32..67e68c2 100644
--- a/_modules/parsedmarc/elastic.html
+++ b/_modules/parsedmarc/elastic.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>parsedmarc.elastic &mdash; parsedmarc 3.7.2 documentation</title>
+  <title>parsedmarc.elastic &mdash; parsedmarc 3.7.3 documentation</title>
   
 
   
@@ -56,7 +56,7 @@
             
             
               <div class="version">
-                3.7.2
+                3.7.3
               </div>
             
           
@@ -276,8 +276,8 @@
                                          <span class="n">address</span><span class="o">=</span><span class="n">address</span><span class="p">))</span>
 
     <span class="k">def</span> <span class="nf">add_attachment</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">filename</span><span class="p">,</span> <span class="n">content_type</span><span class="p">):</span>
-        <span class="bp">self</span><span class="o">.</span><span class="n">attachments</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">filename</span><span class="o">=</span><span class="n">filename</span><span class="p">,</span>
-                                <span class="n">content_type</span><span class="o">=</span><span class="n">content_type</span><span class="p">)</span>
+        <span class="bp">self</span><span class="o">.</span><span class="n">attachments</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">_EmailAttachmentDoc</span><span class="p">(</span><span class="n">filename</span><span class="o">=</span><span class="n">filename</span><span class="p">,</span>
+                                <span class="n">content_type</span><span class="o">=</span><span class="n">content_type</span><span class="p">))</span>
 
 
 <span class="k">class</span> <span class="nc">_ForensicReportDoc</span><span class="p">(</span><span class="n">Document</span><span class="p">):</span>
@@ -545,7 +545,7 @@
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'../../',
-            VERSION:'3.7.2',
+            VERSION:'3.7.3',
             LANGUAGE:'None',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
diff --git a/_static/documentation_options.js b/_static/documentation_options.js
index 66e242a..ed07036 100644
--- a/_static/documentation_options.js
+++ b/_static/documentation_options.js
@@ -1,6 +1,6 @@
 var DOCUMENTATION_OPTIONS = {
     URL_ROOT: document.getElementById("documentation_options").getAttribute('data-url_root'),
-    VERSION: '3.7.2',
+    VERSION: '3.7.3',
     LANGUAGE: 'None',
     COLLAPSE_INDEX: false,
     FILE_SUFFIX: '.html',
diff --git a/genindex.html b/genindex.html
index d3700c9..66a4d6c 100644
--- a/genindex.html
+++ b/genindex.html
@@ -9,7 +9,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>Index &mdash; parsedmarc 3.7.2 documentation</title>
+  <title>Index &mdash; parsedmarc 3.7.3 documentation</title>
   
 
   
@@ -57,7 +57,7 @@
             
             
               <div class="version">
-                3.7.2
+                3.7.3
               </div>
             
           
@@ -310,7 +310,7 @@
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.7.2',
+            VERSION:'3.7.3',
             LANGUAGE:'None',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
diff --git a/index.html b/index.html
index fd4b258..81b19bb 100644
--- a/index.html
+++ b/index.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>Welcome to parsedmarc’s documentation! &mdash; parsedmarc 3.7.2 documentation</title>
+  <title>Welcome to parsedmarc’s documentation! &mdash; parsedmarc 3.7.3 documentation</title>
   
 
   
@@ -56,7 +56,7 @@
             
             
               <div class="version">
-                3.7.2
+                3.7.3
               </div>
             
           
@@ -1290,7 +1290,7 @@ to a callback function</p>
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.7.2',
+            VERSION:'3.7.3',
             LANGUAGE:'None',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
diff --git a/objects.inv b/objects.inv
index 415c9c6..53a7365 100644
--- a/objects.inv
+++ b/objects.inv
@@ -1,5 +1,5 @@
 # Sphinx inventory version 2
 # Project: parsedmarc
-# Version: 3.7.2
+# Version: 3.7.3
 # The remainder of this file is compressed using zlib.
 xڭ�KN�0��=�lS�mw��HU���r�ibɎ-{RRV\��q�$����;k��x�e΃��qb�smD���Yh�ju�Dz�M�x�(��s�EZ����<G�SR�e�d+��a2_䫻�G������xt�������be�(h�+L��l"9��vB��65������h��L��A�!���l������V�cB��I��F�P-:Ƒ�Z�f�p��4T����1m��ЬWiGcU�YMQj�ȴ��a�10ڣ;�܄�T�Hicoq�9������ehz��G�>���]��Y��6ݯg�����0�՘]-��"ģ�+�
E�9D;Y���(�Gщ�7a7ѐ�%>��=	�FC�,������tv�>�~E���������z���d%L>
%;��
\ No newline at end of file
diff --git a/py-modindex.html b/py-modindex.html
index 15c826f..ce0118f 100644
--- a/py-modindex.html
+++ b/py-modindex.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>Python Module Index &mdash; parsedmarc 3.7.2 documentation</title>
+  <title>Python Module Index &mdash; parsedmarc 3.7.3 documentation</title>
   
 
   
@@ -59,7 +59,7 @@
             
             
               <div class="version">
-                3.7.2
+                3.7.3
               </div>
             
           
@@ -200,7 +200,7 @@
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.7.2',
+            VERSION:'3.7.3',
             LANGUAGE:'None',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
diff --git a/search.html b/search.html
index fed1374..b52d305 100644
--- a/search.html
+++ b/search.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>Search &mdash; parsedmarc 3.7.2 documentation</title>
+  <title>Search &mdash; parsedmarc 3.7.3 documentation</title>
   
 
   
@@ -56,7 +56,7 @@
             
             
               <div class="version">
-                3.7.2
+                3.7.3
               </div>
             
           
@@ -188,7 +188,7 @@
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.7.2',
+            VERSION:'3.7.3',
             LANGUAGE:'None',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',