diff --git a/composer.json b/composer.json
index eb3fb35..02afdeb 100644
--- a/composer.json
+++ b/composer.json
@@ -1,5 +1,5 @@
 {
-    "name": "clivern/imap",
+    "name": "deblan/clivern-imap",
     "type": "library",
     "description": "Access Mailbox Using PHP IMAP",
     "keywords": ["clivern", "imap"],
@@ -18,7 +18,7 @@
     "require-dev": {
         "phpunit/phpunit": "5.7.27",
         "friendsofphp/php-cs-fixer": "2.16.1",
-        "squizlabs/php_codesniffer": "3.6.2"
+        "squizlabs/php_codesniffer": "3.5.4"
     },
     "autoload": {
         "psr-4": {
diff --git a/composer.lock b/composer.lock
index 4850658..95e1231 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "131b1e2c7543614a4968cc50cd86d34b",
+    "content-hash": "d181bb008b848ce4218461baa0b1431b",
     "packages": [],
     "packages-dev": [
         {
@@ -457,12 +457,12 @@
             },
             "type": "library",
             "autoload": {
-                "files": [
-                    "src/DeepCopy/deep_copy.php"
-                ],
                 "psr-4": {
                     "DeepCopy\\": "src/DeepCopy/"
-                }
+                },
+                "files": [
+                    "src/DeepCopy/deep_copy.php"
+                ]
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
@@ -1037,7 +1037,6 @@
             "keywords": [
                 "tokenizer"
             ],
-            "abandoned": true,
             "time": "2017-11-27T05:48:46+00:00"
         },
         {
@@ -1839,16 +1838,16 @@
         },
         {
             "name": "squizlabs/php_codesniffer",
-            "version": "3.6.2",
+            "version": "3.5.4",
             "source": {
                 "type": "git",
                 "url": "https://github.com/squizlabs/PHP_CodeSniffer.git",
-                "reference": "5e4e71592f69da17871dba6e80dd51bce74a351a"
+                "reference": "dceec07328401de6211037abbb18bda423677e26"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/squizlabs/PHP_CodeSniffer/zipball/5e4e71592f69da17871dba6e80dd51bce74a351a",
-                "reference": "5e4e71592f69da17871dba6e80dd51bce74a351a",
+                "url": "https://api.github.com/repos/squizlabs/PHP_CodeSniffer/zipball/dceec07328401de6211037abbb18bda423677e26",
+                "reference": "dceec07328401de6211037abbb18bda423677e26",
                 "shasum": ""
             },
             "require": {
@@ -1886,7 +1885,7 @@
                 "phpcs",
                 "standards"
             ],
-            "time": "2021-12-12T21:44:58+00:00"
+            "time": "2020-01-30T22:20:29+00:00"
         },
         {
             "name": "symfony/console",
@@ -2435,12 +2434,12 @@
                 }
             },
             "autoload": {
-                "files": [
-                    "bootstrap.php"
-                ],
                 "psr-4": {
                     "Symfony\\Polyfill\\Ctype\\": ""
-                }
+                },
+                "files": [
+                    "bootstrap.php"
+                ]
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
@@ -2511,12 +2510,12 @@
                 }
             },
             "autoload": {
-                "files": [
-                    "bootstrap.php"
-                ],
                 "psr-4": {
                     "Symfony\\Polyfill\\Intl\\Grapheme\\": ""
-                }
+                },
+                "files": [
+                    "bootstrap.php"
+                ]
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
@@ -2589,12 +2588,12 @@
                 }
             },
             "autoload": {
-                "files": [
-                    "bootstrap.php"
-                ],
                 "psr-4": {
                     "Symfony\\Polyfill\\Intl\\Normalizer\\": ""
                 },
+                "files": [
+                    "bootstrap.php"
+                ],
                 "classmap": [
                     "Resources/stubs"
                 ]
@@ -2670,12 +2669,12 @@
                 }
             },
             "autoload": {
-                "files": [
-                    "bootstrap.php"
-                ],
                 "psr-4": {
                     "Symfony\\Polyfill\\Mbstring\\": ""
-                }
+                },
+                "files": [
+                    "bootstrap.php"
+                ]
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
@@ -2745,12 +2744,12 @@
                 }
             },
             "autoload": {
-                "files": [
-                    "bootstrap.php"
-                ],
                 "psr-4": {
                     "Symfony\\Polyfill\\Php70\\": ""
                 },
+                "files": [
+                    "bootstrap.php"
+                ],
                 "classmap": [
                     "Resources/stubs"
                 ]
@@ -2821,12 +2820,12 @@
                 }
             },
             "autoload": {
-                "files": [
-                    "bootstrap.php"
-                ],
                 "psr-4": {
                     "Symfony\\Polyfill\\Php72\\": ""
-                }
+                },
+                "files": [
+                    "bootstrap.php"
+                ]
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
@@ -2894,12 +2893,12 @@
                 }
             },
             "autoload": {
-                "files": [
-                    "bootstrap.php"
-                ],
                 "psr-4": {
                     "Symfony\\Polyfill\\Php73\\": ""
                 },
+                "files": [
+                    "bootstrap.php"
+                ],
                 "classmap": [
                     "Resources/stubs"
                 ]
@@ -2970,12 +2969,12 @@
                 }
             },
             "autoload": {
-                "files": [
-                    "bootstrap.php"
-                ],
                 "psr-4": {
                     "Symfony\\Polyfill\\Php80\\": ""
                 },
+                "files": [
+                    "bootstrap.php"
+                ],
                 "classmap": [
                     "Resources/stubs"
                 ]
@@ -3261,12 +3260,12 @@
                 }
             },
             "autoload": {
-                "files": [
-                    "Resources/functions.php"
-                ],
                 "psr-4": {
                     "Symfony\\Component\\String\\": ""
                 },
+                "files": [
+                    "Resources/functions.php"
+                ],
                 "exclude-from-classmap": [
                     "/Tests/"
                 ]
@@ -3389,12 +3388,12 @@
             "version": "1.9.1",
             "source": {
                 "type": "git",
-                "url": "https://github.com/webmozarts/assert.git",
+                "url": "https://github.com/webmozart/assert.git",
                 "reference": "bafc69caeb4d49c39fd0779086c03a3738cbb389"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/webmozarts/assert/zipball/bafc69caeb4d49c39fd0779086c03a3738cbb389",
+                "url": "https://api.github.com/repos/webmozart/assert/zipball/bafc69caeb4d49c39fd0779086c03a3738cbb389",
                 "reference": "bafc69caeb4d49c39fd0779086c03a3738cbb389",
                 "shasum": ""
             },
diff --git a/src/Core/Message/Attachment.php b/src/Core/Message/Attachment.php
index a6f0e76..f1d7916 100644
--- a/src/Core/Message/Attachment.php
+++ b/src/Core/Message/Attachment.php
@@ -226,7 +226,7 @@ class Attachment
         $this->attachment['ifdparameters'] = (isset($this->part->ifdparameters)) ? $this->part->ifdparameters : false;
         $this->attachment['ifparameters'] = (isset($this->part->ifparameters)) ? $this->part->ifparameters : false;
 
-        if (\is_array($this->part->dparameters)) {
+        if (isset($this->part->dparameters) && \is_array($this->part->dparameters)) {
             foreach ($this->part->dparameters as $obj) {
                 if (\in_array(mb_strtolower($obj->attribute), ['filename', 'name'], true)) {
                     $this->attachment[mb_strtolower($obj->attribute)] = pathinfo($obj->value, PATHINFO_FILENAME);
@@ -235,7 +235,7 @@ class Attachment
             }
         }
 
-        if (\is_array($this->part->parameters)) {
+        if (isset($this->part->parameters) && \is_array($this->part->parameters)) {
             foreach ($this->part->parameters as $obj) {
                 if (\in_array(mb_strtolower($obj->attribute), ['filename', 'name'], true)) {
                     $this->attachment[mb_strtolower($obj->attribute)] = pathinfo($obj->value, PATHINFO_FILENAME);