diff --git a/models/crm_lead.py b/models/crm_lead.py
index 4d11d35..028ba67 100644
--- a/models/crm_lead.py
+++ b/models/crm_lead.py
@@ -11,7 +11,6 @@ from markupsafe import Markup
 from psycopg2 import sql
 
 from odoo import api, fields, models, tools, SUPERUSER_ID
-from odoo.addons.iap.tools import iap_tools
 from odoo.addons.mail.tools import mail_validation
 from odoo.addons.phone_validation.tools import phone_validation
 from odoo.exceptions import UserError, AccessError
@@ -189,13 +188,6 @@ class Lead(models.Model):
         'Email', tracking=40, index='trigram',
         compute='_compute_email_from', inverse='_inverse_email_from', readonly=False, store=True)
     email_normalized = fields.Char(index='trigram')  # inherited via mail.thread.blacklist
-    email_domain_criterion = fields.Char(
-        string='Email Domain Criterion',
-        compute="_compute_email_domain_criterion",
-        index='btree_not_null',  # used for exact match, void value do not matter
-        store=True,
-        unaccent=False,  # normalized, exact matching
-    )
     phone = fields.Char(
         'Phone', tracking=50,
         compute='_compute_phone', inverse='_inverse_phone', readonly=False, store=True)
@@ -460,14 +452,6 @@ class Lead(models.Model):
             if lead._get_partner_email_update():
                 lead.partner_id.email = lead.email_from
 
-    @api.depends('email_normalized')
-    def _compute_email_domain_criterion(self):
-        self.email_domain_criterion = False
-        for lead in self.filtered('email_normalized'):
-            lead.email_domain_criterion = iap_tools.mail_prepare_for_domain_search(
-                lead.email_normalized
-            )
-
     @api.depends('partner_id.phone')
     def _compute_phone(self):
         for lead in self:
@@ -565,7 +549,7 @@ class Lead(models.Model):
                 lead.meeting_display_date = lead_meeting_info['last_meeting_date']
                 lead.meeting_display_label = _('Last Meeting')
 
-    @api.depends('email_domain_criterion', 'email_normalized', 'partner_id',
+    @api.depends('email_normalized', 'partner_id',
                  'phone_sanitized')
     def _compute_potential_lead_duplicates(self):
         """ Override potential lead duplicates computation to be more efficient
@@ -601,11 +585,6 @@ class Lead(models.Model):
 
             duplicate_lead_ids = self.env['crm.lead']
 
-            # check the "company" email domain duplicates
-            if lead.email_domain_criterion:
-                duplicate_lead_ids |= return_if_relevant('crm.lead', common_lead_domain + [
-                    ('email_domain_criterion', '=', lead.email_domain_criterion)
-                ])
             # check for "same commercial entity" duplicates
             if lead.partner_id and lead.partner_id.commercial_partner_id:
                 duplicate_lead_ids |= lead.with_context(active_test=False).search(common_lead_domain + [
diff --git a/tests/test_crm_lead_duplicates.py b/tests/test_crm_lead_duplicates.py
index 473b835..b51692a 100644
--- a/tests/test_crm_lead_duplicates.py
+++ b/tests/test_crm_lead_duplicates.py
@@ -2,7 +2,6 @@
 # Part of Odoo. See LICENSE file for full copyright and licensing details.
 
 from odoo.addons.crm.tests.common import TestCrmCommon
-from odoo.addons.iap.tools import iap_tools
 from odoo.tests.common import tagged, users
 
 
@@ -209,23 +208,4 @@ class TestCRMLead(TestCrmCommon):
                     'email_from': test_email,
                     'name': test_email,
                 })
-                self.assertEqual(lead.email_domain_criterion, f'@{provider}',)
-
-    @users('user_sales_leads')
-    def test_iap_tools(self):
-        """ Test iap tools specifically """
-        for test_email, provider in self.emails_provider_generic:
-            with self.subTest(test_email=test_email, provider=provider):
-                self.assertEqual(
-                    iap_tools.mail_prepare_for_domain_search(test_email),
-                    test_email,
-                    'As provider is a generic one, complete email should be returned for a company-based mail search'
-                )
-
-        for test_email, provider in self.emails_provider_company:
-            with self.subTest(test_email=test_email, provider=provider):
-                self.assertEqual(
-                    iap_tools.mail_prepare_for_domain_search(test_email),
-                    f'@{provider}',
-                    'As provider is a company one, only the domain part should be returned for a company-based mail search'
-                )
+                self.assertEqual(lead.email_domain_criterion, f'@{provider}',)
\ No newline at end of file