diff --git a/examples/inboxes_api.rb b/examples/inboxes_api.rb
index 0440f80..579dec2 100644
--- a/examples/inboxes_api.rb
+++ b/examples/inboxes_api.rb
@@ -29,5 +29,11 @@
 # Reset SMTP credentials of the inbox
 inboxes.reset_credentials(inbox.id)
 
+# Turn the email address of the inbox on/off
+inboxes.toggle_email_username(inbox.id)
+
+# Reset username of email address per inbox
+inboxes.reset_email_username(inbox.id)
+
 # Delete unbox list
 inboxes.delete(inbox.id)
diff --git a/lib/mailtrap/inboxes_api.rb b/lib/mailtrap/inboxes_api.rb
index ea8fc8f..bed615a 100644
--- a/lib/mailtrap/inboxes_api.rb
+++ b/lib/mailtrap/inboxes_api.rb
@@ -85,6 +85,24 @@ def reset_credentials(inbox_id)
       handle_response(response)
     end
 
+    # Turn the email address of the inbox on/off
+    # @param inbox_id [Integer] The Inbox identifier
+    # @return [Inbox] Updated Inbox object
+    # @!macro api_errors
+    def toggle_email_username(inbox_id)
+      response = client.patch("#{base_path}/#{inbox_id}/toggle_email_username")
+      handle_response(response)
+    end
+
+    # Reset username of email address per inbox
+    # @param inbox_id [Integer] The Inbox identifier
+    # @return [Inbox] Updated Inbox object
+    # @!macro api_errors
+    def reset_email_username(inbox_id)
+      response = client.patch("#{base_path}/#{inbox_id}/reset_email_username")
+      handle_response(response)
+    end
+
     private
 
     def wrap_request(options)
diff --git a/spec/fixtures/vcr_cassettes/Mailtrap_InboxesAPI/_reset_email_username/returns_Inbox_object.yml b/spec/fixtures/vcr_cassettes/Mailtrap_InboxesAPI/_reset_email_username/returns_Inbox_object.yml
new file mode 100644
index 0000000..054b188
--- /dev/null
+++ b/spec/fixtures/vcr_cassettes/Mailtrap_InboxesAPI/_reset_email_username/returns_Inbox_object.yml
@@ -0,0 +1,75 @@
+---
+http_interactions:
+- request:
+    method: patch
+    uri: https://mailtrap.io/api/accounts/1111111/inboxes/4578672/reset_email_username
+    body:
+      encoding: UTF-8
+      string: ''
+    headers:
+      Accept-Encoding:
+      - gzip;q=1.0,deflate;q=0.6,identity;q=0.3
+      Accept:
+      - "*/*"
+      User-Agent:
+      - mailtrap-ruby (https://github.com/mailtrap/mailtrap-ruby)
+      Host:
+      - mailtrap.io
+      Authorization:
+      - Bearer <BEARER_TOKEN>
+      Content-Type:
+      - application/json
+  response:
+    status:
+      code: 200
+      message: OK
+    headers:
+      Date:
+      - Mon, 27 Apr 2026 13:48:43 GMT
+      Content-Type:
+      - application/json; charset=utf-8
+      Transfer-Encoding:
+      - chunked
+      Connection:
+      - keep-alive
+      Server:
+      - cloudflare
+      X-Frame-Options:
+      - SAMEORIGIN
+      X-Xss-Protection:
+      - 1; mode=block
+      X-Content-Type-Options:
+      - nosniff
+      X-Download-Options:
+      - noopen
+      X-Permitted-Cross-Domain-Policies:
+      - none
+      Referrer-Policy:
+      - strict-origin-when-cross-origin
+      Vary:
+      - Accept
+      X-Mailtrap-Version:
+      - v2
+      X-Ratelimit-Limit:
+      - '150'
+      X-Ratelimit-Remaining:
+      - '149'
+      Etag:
+      - W/"a26cb93008de50e490b8f0d44498138b"
+      Cache-Control:
+      - max-age=0, private, must-revalidate
+      X-Runtime:
+      - '0.037827'
+      Strict-Transport-Security:
+      - max-age=2592000; includeSubDomains; preload
+      Cf-Cache-Status:
+      - DYNAMIC
+      Alt-Svc:
+      - h3=":443"; ma=86400
+    body:
+      encoding: ASCII-8BIT
+      string: '{"id":4578672,"name":"Ruby SDK","username": "railsware","status":"active","email_username":
+        "1234abcd","email_username_enabled":true,"used":false,"forward_from_email_address":
+        "railsware@forward.mailtrap.info","project_id":2757750,"password": "xxxxxxxx","domain":"sandbox.smtp.mailtrap.io","pop3_domain":"pop3.mailtrap.io","email_domain":"inbox.mailtrap.io","smtp_ports":[25,465,587,2525],"pop3_ports":[1100,9950],"api_domain":"sandbox.api.mailtrap.io","sent_messages_count":0,"forwarded_messages_count":0,"emails_count":0,"emails_unread_count":0,"last_message_sent_at":null,"max_size":1000,"max_message_size":26214400,"permissions":{"can_read":true,"can_update":true,"can_destroy":true,"can_leave":false}}'
+  recorded_at: Mon, 27 Apr 2026 13:48:43 GMT
+recorded_with: VCR 6.4.0
diff --git a/spec/fixtures/vcr_cassettes/Mailtrap_InboxesAPI/_reset_email_username/when_inbox_does_not_exist/raises_not_found_error.yml b/spec/fixtures/vcr_cassettes/Mailtrap_InboxesAPI/_reset_email_username/when_inbox_does_not_exist/raises_not_found_error.yml
new file mode 100644
index 0000000..663e671
--- /dev/null
+++ b/spec/fixtures/vcr_cassettes/Mailtrap_InboxesAPI/_reset_email_username/when_inbox_does_not_exist/raises_not_found_error.yml
@@ -0,0 +1,71 @@
+---
+http_interactions:
+- request:
+    method: patch
+    uri: https://mailtrap.io/api/accounts/1111111/inboxes/-1/reset_email_username
+    body:
+      encoding: UTF-8
+      string: ''
+    headers:
+      Accept-Encoding:
+      - gzip;q=1.0,deflate;q=0.6,identity;q=0.3
+      Accept:
+      - "*/*"
+      User-Agent:
+      - mailtrap-ruby (https://github.com/mailtrap/mailtrap-ruby)
+      Host:
+      - mailtrap.io
+      Authorization:
+      - Bearer <BEARER_TOKEN>
+      Content-Type:
+      - application/json
+  response:
+    status:
+      code: 404
+      message: Not Found
+    headers:
+      Date:
+      - Mon, 27 Apr 2026 13:48:43 GMT
+      Content-Type:
+      - application/json; charset=utf-8
+      Content-Length:
+      - '21'
+      Connection:
+      - keep-alive
+      Server:
+      - cloudflare
+      X-Frame-Options:
+      - SAMEORIGIN
+      X-Xss-Protection:
+      - 1; mode=block
+      X-Content-Type-Options:
+      - nosniff
+      X-Download-Options:
+      - noopen
+      X-Permitted-Cross-Domain-Policies:
+      - none
+      Referrer-Policy:
+      - strict-origin-when-cross-origin
+      Vary:
+      - Accept
+      X-Mailtrap-Version:
+      - v2
+      X-Ratelimit-Limit:
+      - '150'
+      X-Ratelimit-Remaining:
+      - '148'
+      Cache-Control:
+      - no-cache
+      X-Runtime:
+      - '0.014234'
+      Strict-Transport-Security:
+      - max-age=2592000; includeSubDomains; preload
+      Cf-Cache-Status:
+      - DYNAMIC
+      Alt-Svc:
+      - h3=":443"; ma=86400
+    body:
+      encoding: UTF-8
+      string: '{"error":"Not Found"}'
+  recorded_at: Mon, 27 Apr 2026 13:48:43 GMT
+recorded_with: VCR 6.4.0
diff --git a/spec/fixtures/vcr_cassettes/Mailtrap_InboxesAPI/_toggle_email_username/returns_Inbox_object.yml b/spec/fixtures/vcr_cassettes/Mailtrap_InboxesAPI/_toggle_email_username/returns_Inbox_object.yml
new file mode 100644
index 0000000..6969828
--- /dev/null
+++ b/spec/fixtures/vcr_cassettes/Mailtrap_InboxesAPI/_toggle_email_username/returns_Inbox_object.yml
@@ -0,0 +1,75 @@
+---
+http_interactions:
+- request:
+    method: patch
+    uri: https://mailtrap.io/api/accounts/1111111/inboxes/4578672/toggle_email_username
+    body:
+      encoding: UTF-8
+      string: ''
+    headers:
+      Accept-Encoding:
+      - gzip;q=1.0,deflate;q=0.6,identity;q=0.3
+      Accept:
+      - "*/*"
+      User-Agent:
+      - mailtrap-ruby (https://github.com/mailtrap/mailtrap-ruby)
+      Host:
+      - mailtrap.io
+      Authorization:
+      - Bearer <BEARER_TOKEN>
+      Content-Type:
+      - application/json
+  response:
+    status:
+      code: 200
+      message: OK
+    headers:
+      Date:
+      - Mon, 27 Apr 2026 13:44:52 GMT
+      Content-Type:
+      - application/json; charset=utf-8
+      Transfer-Encoding:
+      - chunked
+      Connection:
+      - keep-alive
+      Server:
+      - cloudflare
+      X-Frame-Options:
+      - SAMEORIGIN
+      X-Xss-Protection:
+      - 1; mode=block
+      X-Content-Type-Options:
+      - nosniff
+      X-Download-Options:
+      - noopen
+      X-Permitted-Cross-Domain-Policies:
+      - none
+      Referrer-Policy:
+      - strict-origin-when-cross-origin
+      Vary:
+      - Accept
+      X-Mailtrap-Version:
+      - v2
+      X-Ratelimit-Limit:
+      - '150'
+      X-Ratelimit-Remaining:
+      - '149'
+      Etag:
+      - W/"55b84a99a8d7012562567a66828a8dd9"
+      Cache-Control:
+      - max-age=0, private, must-revalidate
+      X-Runtime:
+      - '0.032539'
+      Strict-Transport-Security:
+      - max-age=2592000; includeSubDomains; preload
+      Cf-Cache-Status:
+      - DYNAMIC
+      Alt-Svc:
+      - h3=":443"; ma=86400
+    body:
+      encoding: ASCII-8BIT
+      string: '{"id":4578672,"name":"Ruby SDK","username": "railsware","status":"active","email_username":
+        "1234abcd","email_username_enabled":true,"used":false,"forward_from_email_address":
+        "railsware@forward.mailtrap.info","project_id":2757750,"password": "xxxxxxxx","domain":"sandbox.smtp.mailtrap.io","pop3_domain":"pop3.mailtrap.io","email_domain":"inbox.mailtrap.io","smtp_ports":[25,465,587,2525],"pop3_ports":[1100,9950],"api_domain":"sandbox.api.mailtrap.io","sent_messages_count":0,"forwarded_messages_count":0,"emails_count":0,"emails_unread_count":0,"last_message_sent_at":null,"max_size":1000,"max_message_size":26214400,"permissions":{"can_read":true,"can_update":true,"can_destroy":true,"can_leave":false}}'
+  recorded_at: Mon, 27 Apr 2026 13:44:52 GMT
+recorded_with: VCR 6.4.0
diff --git a/spec/fixtures/vcr_cassettes/Mailtrap_InboxesAPI/_toggle_email_username/when_inbox_does_not_exist/raises_not_found_error.yml b/spec/fixtures/vcr_cassettes/Mailtrap_InboxesAPI/_toggle_email_username/when_inbox_does_not_exist/raises_not_found_error.yml
new file mode 100644
index 0000000..eee653f
--- /dev/null
+++ b/spec/fixtures/vcr_cassettes/Mailtrap_InboxesAPI/_toggle_email_username/when_inbox_does_not_exist/raises_not_found_error.yml
@@ -0,0 +1,71 @@
+---
+http_interactions:
+- request:
+    method: patch
+    uri: https://mailtrap.io/api/accounts/1111111/inboxes/-1/toggle_email_username
+    body:
+      encoding: UTF-8
+      string: ''
+    headers:
+      Accept-Encoding:
+      - gzip;q=1.0,deflate;q=0.6,identity;q=0.3
+      Accept:
+      - "*/*"
+      User-Agent:
+      - mailtrap-ruby (https://github.com/mailtrap/mailtrap-ruby)
+      Host:
+      - mailtrap.io
+      Authorization:
+      - Bearer <BEARER_TOKEN>
+      Content-Type:
+      - application/json
+  response:
+    status:
+      code: 404
+      message: Not Found
+    headers:
+      Date:
+      - Mon, 27 Apr 2026 13:44:53 GMT
+      Content-Type:
+      - application/json; charset=utf-8
+      Content-Length:
+      - '21'
+      Connection:
+      - keep-alive
+      Server:
+      - cloudflare
+      X-Frame-Options:
+      - SAMEORIGIN
+      X-Xss-Protection:
+      - 1; mode=block
+      X-Content-Type-Options:
+      - nosniff
+      X-Download-Options:
+      - noopen
+      X-Permitted-Cross-Domain-Policies:
+      - none
+      Referrer-Policy:
+      - strict-origin-when-cross-origin
+      Vary:
+      - Accept
+      X-Mailtrap-Version:
+      - v2
+      X-Ratelimit-Limit:
+      - '150'
+      X-Ratelimit-Remaining:
+      - '148'
+      Cache-Control:
+      - no-cache
+      X-Runtime:
+      - '0.011361'
+      Strict-Transport-Security:
+      - max-age=2592000; includeSubDomains; preload
+      Cf-Cache-Status:
+      - DYNAMIC
+      Alt-Svc:
+      - h3=":443"; ma=86400
+    body:
+      encoding: UTF-8
+      string: '{"error":"Not Found"}'
+  recorded_at: Mon, 27 Apr 2026 13:44:53 GMT
+recorded_with: VCR 6.4.0
diff --git a/spec/mailtrap/inboxes_api_spec.rb b/spec/mailtrap/inboxes_api_spec.rb
index 8daa9e6..e2f730b 100644
--- a/spec/mailtrap/inboxes_api_spec.rb
+++ b/spec/mailtrap/inboxes_api_spec.rb
@@ -209,6 +209,57 @@
     end
   end
 
+  describe '#toggle_email_username' do
+    subject(:toggle_email_username) { inboxes_api.toggle_email_username(inbox_id) }
+
+    let(:inbox_id) { 4_578_672 }
+
+    it 'returns Inbox object' do
+      expect(toggle_email_username).to be_a(Mailtrap::Inbox)
+      expect(toggle_email_username).to have_attributes(
+        id: inbox_id,
+        email_username_enabled: true
+      )
+    end
+
+    context 'when inbox does not exist' do
+      let(:inbox_id) { -1 }
+
+      it 'raises not found error' do
+        expect { toggle_email_username }.to raise_error do |error|
+          expect(error).to be_a(Mailtrap::Error)
+          expect(error.message).to include('Not Found')
+          expect(error.messages.any? { |msg| msg.include?('Not Found') }).to be true
+        end
+      end
+    end
+  end
+
+  describe '#reset_email_username' do
+    subject(:reset_email_username) { inboxes_api.reset_email_username(inbox_id) }
+
+    let(:inbox_id) { 4_578_672 }
+
+    it 'returns Inbox object' do
+      expect(reset_email_username).to have_attributes(
+        id: inbox_id,
+        email_username: '1234abcd'
+      )
+    end
+
+    context 'when inbox does not exist' do
+      let(:inbox_id) { -1 }
+
+      it 'raises not found error' do
+        expect { reset_email_username }.to raise_error do |error|
+          expect(error).to be_a(Mailtrap::Error)
+          expect(error.message).to include('Not Found')
+          expect(error.messages.any? { |msg| msg.include?('Not Found') }).to be true
+        end
+      end
+    end
+  end
+
   describe '#delete' do
     subject(:delete) { inboxes_api.delete(inbox_id) }