diff --git a/_modules/index.html b/_modules/index.html
index 5850271..263a19b 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 4.3.9 documentation</title>
+  <title>Overview: module code &mdash; parsedmarc 4.4.0 documentation</title>
   
 
   
@@ -56,7 +56,7 @@
             
             
               <div class="version">
-                4.3.9
+                4.4.0
               </div>
             
           
@@ -181,7 +181,7 @@
       <script type="text/javascript">
           var DOCUMENTATION_OPTIONS = {
               URL_ROOT:'../',
-              VERSION:'4.3.9',
+              VERSION:'4.4.0',
               LANGUAGE:'None',
               COLLAPSE_INDEX:false,
               FILE_SUFFIX:'.html',
diff --git a/_modules/parsedmarc.html b/_modules/parsedmarc.html
index f19f705..5946eba 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 4.3.9 documentation</title>
+  <title>parsedmarc &mdash; parsedmarc 4.4.0 documentation</title>
   
 
   
@@ -56,7 +56,7 @@
             
             
               <div class="version">
-                4.3.9
+                4.4.0
               </div>
             
           
@@ -177,12 +177,13 @@
 <span class="kn">import</span> <span class="nn">imapclient.exceptions</span>
 <span class="kn">import</span> <span class="nn">mailparser</span>
 
-<span class="kn">from</span> <span class="nn">parsedmarc.__version__</span> <span class="k">import</span> <span class="n">__version__</span>
 <span class="kn">from</span> <span class="nn">parsedmarc.utils</span> <span class="k">import</span> <span class="n">get_base_domain</span><span class="p">,</span> <span class="n">get_ip_address_info</span>
 <span class="kn">from</span> <span class="nn">parsedmarc.utils</span> <span class="k">import</span> <span class="n">is_outlook_msg</span><span class="p">,</span> <span class="n">convert_outlook_msg</span>
 <span class="kn">from</span> <span class="nn">parsedmarc.utils</span> <span class="k">import</span> <span class="n">timestamp_to_human</span><span class="p">,</span> <span class="n">human_timestamp_to_datetime</span>
 <span class="kn">from</span> <span class="nn">parsedmarc.utils</span> <span class="k">import</span> <span class="n">parse_email</span>
 
+<span class="n">__version__</span> <span class="o">=</span> <span class="s2">&quot;4.4.0&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="s2">&quot;parsedmarc&quot;</span><span class="p">)</span>
 <span class="n">logger</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="s2">&quot;parsedmarc v</span><span class="si">{0}</span><span class="s2">&quot;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">__version__</span><span class="p">))</span>
 
@@ -1751,7 +1752,7 @@
       <script type="text/javascript">
           var DOCUMENTATION_OPTIONS = {
               URL_ROOT:'../',
-              VERSION:'4.3.9',
+              VERSION:'4.4.0',
               LANGUAGE:'None',
               COLLAPSE_INDEX:false,
               FILE_SUFFIX:'.html',
diff --git a/_modules/parsedmarc/elastic.html b/_modules/parsedmarc/elastic.html
index 5c787ae..84392f5 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 4.3.9 documentation</title>
+  <title>parsedmarc.elastic &mdash; parsedmarc 4.4.0 documentation</title>
   
 
   
@@ -56,7 +56,7 @@
             
             
               <div class="version">
-                4.3.9
+                4.4.0
               </div>
             
           
@@ -585,7 +585,7 @@
       <script type="text/javascript">
           var DOCUMENTATION_OPTIONS = {
               URL_ROOT:'../../',
-              VERSION:'4.3.9',
+              VERSION:'4.4.0',
               LANGUAGE:'None',
               COLLAPSE_INDEX:false,
               FILE_SUFFIX:'.html',
diff --git a/_modules/parsedmarc/splunk.html b/_modules/parsedmarc/splunk.html
index 1b9fc65..6b418d6 100644
--- a/_modules/parsedmarc/splunk.html
+++ b/_modules/parsedmarc/splunk.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>parsedmarc.splunk &mdash; parsedmarc 4.3.9 documentation</title>
+  <title>parsedmarc.splunk &mdash; parsedmarc 4.4.0 documentation</title>
   
 
   
@@ -56,7 +56,7 @@
             
             
               <div class="version">
-                4.3.9
+                4.4.0
               </div>
             
           
@@ -153,7 +153,7 @@
 <span class="kn">import</span> <span class="nn">urllib3</span>
 <span class="kn">import</span> <span class="nn">requests</span>
 
-<span class="kn">from</span> <span class="nn">parsedmarc.__version__</span> <span class="k">import</span> <span class="n">__version__</span>
+<span class="kn">from</span> <span class="nn">parsedmarc</span> <span class="k">import</span> <span class="n">__version__</span>
 <span class="kn">from</span> <span class="nn">parsedmarc.utils</span> <span class="k">import</span> <span class="n">human_timestamp_to_timestamp</span>
 
 <span class="n">urllib3</span><span class="o">.</span><span class="n">disable_warnings</span><span class="p">(</span><span class="n">urllib3</span><span class="o">.</span><span class="n">exceptions</span><span class="o">.</span><span class="n">InsecureRequestWarning</span><span class="p">)</span>
@@ -334,7 +334,7 @@
       <script type="text/javascript">
           var DOCUMENTATION_OPTIONS = {
               URL_ROOT:'../../',
-              VERSION:'4.3.9',
+              VERSION:'4.4.0',
               LANGUAGE:'None',
               COLLAPSE_INDEX:false,
               FILE_SUFFIX:'.html',
diff --git a/_modules/parsedmarc/utils.html b/_modules/parsedmarc/utils.html
index 2a7f41e..c3b9bce 100644
--- a/_modules/parsedmarc/utils.html
+++ b/_modules/parsedmarc/utils.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>parsedmarc.utils &mdash; parsedmarc 4.3.9 documentation</title>
+  <title>parsedmarc.utils &mdash; parsedmarc 4.4.0 documentation</title>
   
 
   
@@ -56,7 +56,7 @@
             
             
               <div class="version">
-                4.3.9
+                4.4.0
               </div>
             
           
@@ -161,6 +161,7 @@
 <span class="kn">import</span> <span class="nn">json</span>
 <span class="kn">import</span> <span class="nn">hashlib</span>
 <span class="kn">import</span> <span class="nn">base64</span>
+<span class="kn">import</span> <span class="nn">platform</span>
 
 <span class="kn">import</span> <span class="nn">dateparser</span>
 <span class="kn">import</span> <span class="nn">dns.reversename</span>
@@ -171,7 +172,13 @@
 <span class="kn">import</span> <span class="nn">requests</span>
 <span class="kn">import</span> <span class="nn">publicsuffix</span>
 
-<span class="kn">from</span> <span class="nn">parsedmarc.__version__</span> <span class="k">import</span> <span class="n">USER_AGENT</span>
+<span class="n">__version__</span> <span class="o">=</span> <span class="s2">&quot;4.3.9&quot;</span>
+
+<span class="n">USER_AGENT</span> <span class="o">=</span> <span class="s2">&quot;Mozilla/5.0 ((0 </span><span class="si">{1}</span><span class="s2">)) parsedmarc/</span><span class="si">{2}</span><span class="s2">&quot;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span>
+            <span class="n">platform</span><span class="o">.</span><span class="n">system</span><span class="p">(),</span>
+            <span class="n">platform</span><span class="o">.</span><span class="n">release</span><span class="p">(),</span>
+            <span class="n">__version__</span>
+        <span class="p">)</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="s2">&quot;parsedmarc&quot;</span><span class="p">)</span>
@@ -683,7 +690,7 @@
       <script type="text/javascript">
           var DOCUMENTATION_OPTIONS = {
               URL_ROOT:'../../',
-              VERSION:'4.3.9',
+              VERSION:'4.4.0',
               LANGUAGE:'None',
               COLLAPSE_INDEX:false,
               FILE_SUFFIX:'.html',
diff --git a/_static/documentation_options.js b/_static/documentation_options.js
index 95ae6af..380e12a 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: '4.3.9',
+    VERSION: '4.4.0',
     LANGUAGE: 'None',
     COLLAPSE_INDEX: false,
     FILE_SUFFIX: '.html',
diff --git a/genindex.html b/genindex.html
index 8f074ea..bcb9392 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 4.3.9 documentation</title>
+  <title>Index &mdash; parsedmarc 4.4.0 documentation</title>
   
 
   
@@ -57,7 +57,7 @@
             
             
               <div class="version">
-                4.3.9
+                4.4.0
               </div>
             
           
@@ -381,7 +381,7 @@
       <script type="text/javascript">
           var DOCUMENTATION_OPTIONS = {
               URL_ROOT:'./',
-              VERSION:'4.3.9',
+              VERSION:'4.4.0',
               LANGUAGE:'None',
               COLLAPSE_INDEX:false,
               FILE_SUFFIX:'.html',
diff --git a/index.html b/index.html
index 8311005..7ef2541 100644
--- a/index.html
+++ b/index.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>parsedmarc documentation - Open source DMARC report analyzer and visualizer &mdash; parsedmarc 4.3.9 documentation</title>
+  <title>parsedmarc documentation - Open source DMARC report analyzer and visualizer &mdash; parsedmarc 4.4.0 documentation</title>
   
 
   
@@ -56,7 +56,7 @@
             
             
               <div class="version">
-                4.3.9
+                4.4.0
               </div>
             
           
@@ -2069,7 +2069,7 @@ country associated with the given IPv4 or IPv6 address</p>
       <script type="text/javascript">
           var DOCUMENTATION_OPTIONS = {
               URL_ROOT:'./',
-              VERSION:'4.3.9',
+              VERSION:'4.4.0',
               LANGUAGE:'None',
               COLLAPSE_INDEX:false,
               FILE_SUFFIX:'.html',
diff --git a/objects.inv b/objects.inv
index a02cd15..9bf6895 100644
Binary files a/objects.inv and b/objects.inv differ
diff --git a/py-modindex.html b/py-modindex.html
index 03f321c..d2f1e6f 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 4.3.9 documentation</title>
+  <title>Python Module Index &mdash; parsedmarc 4.4.0 documentation</title>
   
 
   
@@ -59,7 +59,7 @@
             
             
               <div class="version">
-                4.3.9
+                4.4.0
               </div>
             
           
@@ -212,7 +212,7 @@
       <script type="text/javascript">
           var DOCUMENTATION_OPTIONS = {
               URL_ROOT:'./',
-              VERSION:'4.3.9',
+              VERSION:'4.4.0',
               LANGUAGE:'None',
               COLLAPSE_INDEX:false,
               FILE_SUFFIX:'.html',
diff --git a/search.html b/search.html
index 2002894..c0c50e7 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 4.3.9 documentation</title>
+  <title>Search &mdash; parsedmarc 4.4.0 documentation</title>
   
 
   
@@ -56,7 +56,7 @@
             
             
               <div class="version">
-                4.3.9
+                4.4.0
               </div>
             
           
@@ -190,7 +190,7 @@
       <script type="text/javascript">
           var DOCUMENTATION_OPTIONS = {
               URL_ROOT:'./',
-              VERSION:'4.3.9',
+              VERSION:'4.4.0',
               LANGUAGE:'None',
               COLLAPSE_INDEX:false,
               FILE_SUFFIX:'.html',