diff --git a/addons/crm_mail_plugin/i18n/crm_mail_plugin.pot b/addons/crm_mail_plugin/i18n/crm_mail_plugin.pot
index 150bdb9f016..d414e0084b5 100644
--- a/addons/crm_mail_plugin/i18n/crm_mail_plugin.pot
+++ b/addons/crm_mail_plugin/i18n/crm_mail_plugin.pot
@@ -111,3 +111,17 @@ msgstr ""
 #, python-format
 msgid "Save Contact to create new Opportunities."
 msgstr ""
+
+#. module: crm_mail_plugin
+#. openerp-web
+#: code:addons/crm_mail_plugin/static/src/to_translate/translations_outlook.xml:0
+#, python-format
+msgid "The Contact needs to exist to create Opportunity."
+msgstr ""
+
+#. module: crm_mail_plugin
+#. openerp-web
+#: code:addons/crm_mail_plugin/static/src/to_translate/translations_gmail.xml:0
+#, python-format
+msgid "You can only create opportunities for existing customers."
+msgstr ""
diff --git a/addons/crm_mail_plugin/static/src/to_translate/translations_gmail.xml b/addons/crm_mail_plugin/static/src/to_translate/translations_gmail.xml
index 945677f4090..4193d4f28cd 100644
--- a/addons/crm_mail_plugin/static/src/to_translate/translations_gmail.xml
+++ b/addons/crm_mail_plugin/static/src/to_translate/translations_gmail.xml
@@ -10,4 +10,5 @@
     <string>%(expected_revenue)s at %(probability)s%</string>
     <string>%(expected_revenue)s + %(recurring_revenue)s %(recurring_plan)s at %(probability)s%</string>
     <string>Save Contact to create new Opportunities.</string>
+    <string>You can only create opportunities for existing customers.</string>
 </ressources>
diff --git a/addons/crm_mail_plugin/static/src/to_translate/translations_outlook.xml b/addons/crm_mail_plugin/static/src/to_translate/translations_outlook.xml
index 22ce4b7c5fd..e3c045f7d11 100644
--- a/addons/crm_mail_plugin/static/src/to_translate/translations_outlook.xml
+++ b/addons/crm_mail_plugin/static/src/to_translate/translations_outlook.xml
@@ -8,4 +8,5 @@
     <string>%(expected_revenue)s + %(recurring_revenue)s %(recurring_plan)s at %(probability)s%</string>
     <string>Save Contact to create new Opportunities.</string>
     <string>No opportunities found for this contact.</string>
+    <string>The Contact needs to exist to create Opportunity.</string>
 </ressources>
diff --git a/addons/mail_plugin/controllers/mail_plugin.py b/addons/mail_plugin/controllers/mail_plugin.py
index 19f50679392..5c10516c525 100644
--- a/addons/mail_plugin/controllers/mail_plugin.py
+++ b/addons/mail_plugin/controllers/mail_plugin.py
@@ -9,6 +9,7 @@ from werkzeug.exceptions import Forbidden
 
 from odoo import http, tools, _
 from odoo.addons.iap.tools import iap_tools
+from odoo.exceptions import AccessError
 from odoo.http import request
 
 _logger = logging.getLogger(__name__)
@@ -168,7 +169,10 @@ class MailPluginController(http.Controller):
                 'enrichment_info': None,
             }
             company = self._find_existing_company(normalized_email)
-            if not company:  # create and enrich company
+
+            can_create_partner = request.env['res.partner'].check_access_rights('create', raise_exception=False)
+
+            if not company and can_create_partner:  # create and enrich company
                 company, enrichment_info = self._create_company_from_iap(normalized_email)
                 response['partner']['enrichment_info'] = enrichment_info
             response['partner']['company'] = self._get_company_data(company)
@@ -366,8 +370,14 @@ class MailPluginController(http.Controller):
         partner_values['title'] = partner.function
         partner_values['enrichment_info'] = None
 
-        return partner_values
+        try:
+            partner.check_access_rights('write')
+            partner.check_access_rule('write')
+            partner_values['can_write_on_partner'] = True
+        except AccessError:
+            partner_values['can_write_on_partner'] = False
 
+        return partner_values
 
     def _get_contact_data(self, partner):
         """
@@ -387,7 +397,9 @@ class MailPluginController(http.Controller):
 
         return {
             'partner': partner_response,
-            'user_companies': request.env['res.users'].browse(request.uid).company_ids.ids
+            'user_companies': request.env.user.company_ids.ids,
+            'can_create_partner': request.env['res.partner'].check_access_rights(
+                'create', raise_exception=False),
         }
 
     def _mail_content_logging_models_whitelist(self):
diff --git a/addons/project_mail_plugin/controllers/mail_plugin.py b/addons/project_mail_plugin/controllers/mail_plugin.py
index f7be93255b8..f8c05054eaa 100644
--- a/addons/project_mail_plugin/controllers/mail_plugin.py
+++ b/addons/project_mail_plugin/controllers/mail_plugin.py
@@ -44,6 +44,8 @@ class MailPluginController(mail_plugin.MailPluginController):
                 } for task in partner_tasks if task.project_id.id in accessible_projects]
 
             contact_values['tasks'] = tasks_values
+            contact_values['can_create_project'] = request.env['project.project'].check_access_rights(
+                'create', raise_exception=False)
 
         return contact_values
 
diff --git a/addons/project_mail_plugin/i18n/project_mail_plugin.pot b/addons/project_mail_plugin/i18n/project_mail_plugin.pot
index 1f697bb17b5..466c8de8c49 100644
--- a/addons/project_mail_plugin/i18n/project_mail_plugin.pot
+++ b/addons/project_mail_plugin/i18n/project_mail_plugin.pot
@@ -85,6 +85,13 @@ msgstr ""
 msgid "Log the email on the task"
 msgstr ""
 
+#. module: project_mail_plugin
+#. openerp-web
+#: code:addons/project_mail_plugin/static/src/to_translate/translations_gmail.xml:0
+#, python-format
+msgid "No project"
+msgstr ""
+
 #. module: project_mail_plugin
 #. openerp-web
 #: code:addons/project_mail_plugin/static/src/to_translate/translations_gmail.xml:0
@@ -188,9 +195,26 @@ msgstr ""
 msgid "Tasks (%s)"
 msgstr ""
 
+#. module: project_mail_plugin
+#. openerp-web
+#: code:addons/project_mail_plugin/static/src/to_translate/translations_gmail.xml:0
+#: code:addons/project_mail_plugin/static/src/to_translate/translations_outlook.xml:0
+#, python-format
+msgid "The Contact needs to exist to create Task."
+msgstr ""
+
 #. module: project_mail_plugin
 #. openerp-web
 #: code:addons/project_mail_plugin/static/src/to_translate/translations_gmail.xml:0
 #, python-format
 msgid "The project name is required"
 msgstr ""
+
+#. module: project_mail_plugin
+#. openerp-web
+#: code:addons/project_mail_plugin/static/src/to_translate/translations_gmail.xml:0
+#, python-format
+msgid ""
+"There are no project in your database. Please ask your project manager to "
+"create one."
+msgstr ""
diff --git a/addons/project_mail_plugin/static/src/to_translate/translations_gmail.xml b/addons/project_mail_plugin/static/src/to_translate/translations_gmail.xml
index a16863056f0..fc79a184b82 100644
--- a/addons/project_mail_plugin/static/src/to_translate/translations_gmail.xml
+++ b/addons/project_mail_plugin/static/src/to_translate/translations_gmail.xml
@@ -20,4 +20,7 @@
     <string>Save the contact to create new tasks.</string>
     <string>The project name is required</string>
     <string>No project found.</string>
+    <string>The Contact needs to exist to create Task.</string>
+    <string>No project</string>
+    <string>There are no project in your database. Please ask your project manager to create one.</string>
 </ressources>
diff --git a/addons/project_mail_plugin/static/src/to_translate/translations_outlook.xml b/addons/project_mail_plugin/static/src/to_translate/translations_outlook.xml
index 850c5670752..a826e7ee8d1 100644
--- a/addons/project_mail_plugin/static/src/to_translate/translations_outlook.xml
+++ b/addons/project_mail_plugin/static/src/to_translate/translations_outlook.xml
@@ -9,4 +9,7 @@
     <string>Create %(name)s</string>
     <string>Search Projects...</string>
     <string>Log Email Into Task</string>
+    <string>The Contact needs to exist to create Task.</string>
+    <string>No Project Found</string>
+    <string>No project</string>
 </ressources>