diff --git a/src/App/Pages/Generator/GeneratorPage.xaml b/src/App/Pages/Generator/GeneratorPage.xaml
index 48cdcbc70..975180db8 100644
--- a/src/App/Pages/Generator/GeneratorPage.xaml
+++ b/src/App/Pages/Generator/GeneratorPage.xaml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8" ?>
+<?xml version="1.0" encoding="utf-8" ?>
 <pages:BaseContentPage 
     xmlns="http://xamarin.com/schemas/2014/forms"
     xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
@@ -20,6 +20,7 @@
         <ResourceDictionary>
             <u:InverseBoolConverter x:Key="inverseBool" />
             <u:LocalizableEnumConverter x:Key="localizableEnum" />
+            <u:IconGlyphConverter x:Key="iconGlyphConverter" />
             <xct:EnumToBoolConverter x:Key="enumToBool"/>
             <ToolbarItem Text="{u:I18n Cancel}" Command="{Binding CloseCommand}" Order="Primary" Priority="-1"
                          x:Name="_closeItem" x:Key="closeItem" />
@@ -251,7 +252,7 @@
                                 Grid.Row="1"/>
                             <controls:IconButton
                                 StyleClass="box-row-button, box-row-button-platform"
-                                Text="{Binding ShowAnonAddyHiddenValueIcon}"
+                                Text="{Binding ShowAnonAddyApiAccessToken, Converter={StaticResource inverseBool, iconGlyphConverter}, ConverterParameter={x:Static u:BooleanGlyphType.Eye}}"
                                 Command="{Binding ToggleForwardedEmailHiddenValueCommand}"
                                 Grid.Row="1"
                                 Grid.Column="1"/>
@@ -280,7 +281,7 @@
                                 IsPassword="{Binding ShowFirefoxRelayApiAccessToken, Converter={StaticResource inverseBool}}"/>
                             <controls:IconButton
                                 StyleClass="box-row-button, box-row-button-platform"
-                                Text="{Binding ShowFirefoxRelayHiddenValueIcon}"
+                                Text="{Binding ShowFirefoxRelayApiAccessToken, Converter={StaticResource inverseBool, iconGlyphConverter}, ConverterParameter={x:Static u:BooleanGlyphType.Eye}}"
                                 Command="{Binding ToggleForwardedEmailHiddenValueCommand}"
                                 Grid.Row="1"
                                 Grid.Column="1"/>
@@ -301,7 +302,49 @@
                                 IsPassword="{Binding ShowSimpleLoginApiKey, Converter={StaticResource inverseBool}}"/>
                             <controls:IconButton 
                                 StyleClass="box-row-button, box-row-button-platform"
-                                Text="{Binding ShowSimpleLoginHiddenValueIcon}"
+                                Text="{Binding ShowSimpleLoginApiKey, Converter={StaticResource inverseBool, iconGlyphConverter}, ConverterParameter={x:Static u:BooleanGlyphType.Eye}}"
+                                Command="{Binding ToggleForwardedEmailHiddenValueCommand}"
+                                Grid.Row="1"
+                                Grid.Column="1"/>
+                        </Grid>
+                        <!--DUCKDUCKGO OPTIONS-->
+                        <Grid StyleClass="box-row, box-row-input"
+                              IsVisible="{Binding ForwardedEmailServiceSelected, Converter={StaticResource enumToBool}, ConverterParameter={x:Static enums:ForwardedEmailServiceType.DuckDuckGo}}"
+                              Grid.RowDefinitions="Auto,*"
+                              Grid.ColumnDefinitions="*,Auto">
+                            <Label
+                                Text="{u:I18n APIKeyRequiredParenthesis}"
+                                StyleClass="box-label"/>
+                            <Entry
+                                x:Name="_duckDuckGoApiAccessTokenEntry"
+                                Text="{Binding DuckDuckGoApiKey}"
+                                StyleClass="box-value"
+                                Grid.Row="1"
+                                IsPassword="{Binding ShowDuckDuckGoApiKey, Converter={StaticResource inverseBool}}"/>
+                            <controls:IconButton
+                                StyleClass="box-row-button, box-row-button-platform"
+                                Text="{Binding ShowDuckDuckGoApiKey, Converter={StaticResource inverseBool, iconGlyphConverter}, ConverterParameter={x:Static u:BooleanGlyphType.Eye}}"
+                                Command="{Binding ToggleForwardedEmailHiddenValueCommand}"
+                                Grid.Row="1"
+                                Grid.Column="1"/>
+                        </Grid>
+                        <!--FASTMAIL OPTIONS-->
+                        <Grid StyleClass="box-row, box-row-input"
+                              IsVisible="{Binding ForwardedEmailServiceSelected, Converter={StaticResource enumToBool}, ConverterParameter={x:Static enums:ForwardedEmailServiceType.Fastmail}}"
+                              Grid.RowDefinitions="Auto,*"
+                              Grid.ColumnDefinitions="*,Auto">
+                            <Label
+                                Text="{u:I18n APIKeyRequiredParenthesis}"
+                                StyleClass="box-label"/>
+                            <Entry
+                                x:Name="_fastmailApiAccessTokenEntry"
+                                Text="{Binding FastmailApiKey}"
+                                StyleClass="box-value"
+                                Grid.Row="1"
+                                IsPassword="{Binding ShowFastmailApiKey, Converter={StaticResource inverseBool}}"/>
+                            <controls:IconButton
+                                StyleClass="box-row-button, box-row-button-platform"
+                                Text="{Binding ShowFastmailApiKey, Converter={StaticResource iconGlyphConverter}, ConverterParameter={x:Static u:BooleanGlyphType.Eye}}"
                                 Command="{Binding ToggleForwardedEmailHiddenValueCommand}"
                                 Grid.Row="1"
                                 Grid.Column="1"/>
diff --git a/src/App/Pages/Generator/GeneratorPageViewModel.cs b/src/App/Pages/Generator/GeneratorPageViewModel.cs
index b5f103034..8af5548c5 100644
--- a/src/App/Pages/Generator/GeneratorPageViewModel.cs
+++ b/src/App/Pages/Generator/GeneratorPageViewModel.cs
@@ -52,6 +52,8 @@ namespace Bit.App.Pages
         private bool _showFirefoxRelayApiAccessToken;
         private bool _showAnonAddyApiAccessToken;
         private bool _showSimpleLoginApiKey;
+        private bool _showDuckDuckGoApiKey;
+        private bool _showFastmailApiKey;
         private bool _editMode;
 
         public GeneratorPageViewModel()
@@ -79,6 +81,8 @@ namespace Bit.App.Pages
 
             ForwardedEmailServiceTypeOptions = new List<ForwardedEmailServiceType> {
                 ForwardedEmailServiceType.AnonAddy,
+                ForwardedEmailServiceType.DuckDuckGo,
+                ForwardedEmailServiceType.Fastmail,
                 ForwardedEmailServiceType.FirefoxRelay,
                 ForwardedEmailServiceType.SimpleLogin
             };
@@ -461,15 +465,9 @@ namespace Bit.App.Pages
             {
                 return _showAnonAddyApiAccessToken;
             }
-            set => SetProperty(ref _showAnonAddyApiAccessToken, value,
-                additionalPropertyNames: new string[]
-                {
-                    nameof(ShowAnonAddyHiddenValueIcon)
-                });
+            set => SetProperty(ref _showAnonAddyApiAccessToken, value);
         }
 
-        public string ShowAnonAddyHiddenValueIcon => _showAnonAddyApiAccessToken ? BitwardenIcons.EyeSlash : BitwardenIcons.Eye;
-
         public string AnonAddyDomainName
         {
             get => _usernameOptions.AnonAddyDomainName;
@@ -504,15 +502,9 @@ namespace Bit.App.Pages
             {
                 return _showFirefoxRelayApiAccessToken;
             }
-            set => SetProperty(ref _showFirefoxRelayApiAccessToken, value,
-                additionalPropertyNames: new string[]
-                {
-                    nameof(ShowFirefoxRelayHiddenValueIcon)
-                });
+            set => SetProperty(ref _showFirefoxRelayApiAccessToken, value);
         }
 
-        public string ShowFirefoxRelayHiddenValueIcon => _showFirefoxRelayApiAccessToken ? BitwardenIcons.EyeSlash : BitwardenIcons.Eye;
-
         public string SimpleLoginApiKey
         {
             get => _usernameOptions.SimpleLoginApiKey;
@@ -533,14 +525,55 @@ namespace Bit.App.Pages
             {
                 return _showSimpleLoginApiKey;
             }
-            set => SetProperty(ref _showSimpleLoginApiKey, value,
-                additionalPropertyNames: new string[]
-                {
-                    nameof(ShowSimpleLoginHiddenValueIcon)
-                });
+            set => SetProperty(ref _showSimpleLoginApiKey, value);
         }
 
-        public string ShowSimpleLoginHiddenValueIcon => _showSimpleLoginApiKey ? BitwardenIcons.EyeSlash : BitwardenIcons.Eye;
+        public string DuckDuckGoApiKey
+        {
+            get => _usernameOptions.DuckDuckGoApiKey;
+            set
+            {
+                if (_usernameOptions.DuckDuckGoApiKey != value)
+                {
+                    _usernameOptions.DuckDuckGoApiKey = value;
+                    TriggerPropertyChanged(nameof(DuckDuckGoApiKey));
+                    SaveUsernameOptionsAsync(false).FireAndForget();
+                }
+            }
+        }
+
+        public bool ShowDuckDuckGoApiKey
+        {
+            get
+            {
+                return _showDuckDuckGoApiKey;
+            }
+            set => SetProperty(ref _showDuckDuckGoApiKey, value);
+        }
+
+
+        public string FastmailApiKey
+        {
+            get => _usernameOptions.FastMailApiKey;
+            set
+            {
+                if (_usernameOptions.FastMailApiKey != value)
+                {
+                    _usernameOptions.FastMailApiKey = value;
+                    TriggerPropertyChanged(nameof(FastmailApiKey));
+                    SaveUsernameOptionsAsync(false).FireAndForget();
+                }
+            }
+        }
+
+        public bool ShowFastmailApiKey
+        {
+            get
+            {
+                return _showFastmailApiKey;
+            }
+            set => SetProperty(ref _showFastmailApiKey, value);
+        }
 
         public bool CapitalizeRandomWordUsername
         {
@@ -778,6 +811,8 @@ namespace Bit.App.Pages
             TriggerPropertyChanged(nameof(FirefoxRelayApiAccessToken));
             TriggerPropertyChanged(nameof(AnonAddyDomainName));
             TriggerPropertyChanged(nameof(AnonAddyApiAccessToken));
+            TriggerPropertyChanged(nameof(DuckDuckGoApiKey));
+            TriggerPropertyChanged(nameof(FastmailApiKey));
             TriggerPropertyChanged(nameof(CatchAllEmailDomain));
             TriggerPropertyChanged(nameof(ForwardedEmailServiceSelected));
             TriggerPropertyChanged(nameof(UsernameTypeSelected));
@@ -849,6 +884,12 @@ namespace Bit.App.Pages
                 case ForwardedEmailServiceType.SimpleLogin:
                     ShowSimpleLoginApiKey = !ShowSimpleLoginApiKey;
                     break;
+                case ForwardedEmailServiceType.DuckDuckGo:
+                    ShowDuckDuckGoApiKey = !ShowDuckDuckGoApiKey;
+                    break;
+                case ForwardedEmailServiceType.Fastmail:
+                    ShowFastmailApiKey = !ShowFastmailApiKey;
+                    break;
             }
         }
     }
diff --git a/src/App/Resources/AppResources.Designer.cs b/src/App/Resources/AppResources.Designer.cs
index 409ae153e..c5fbf0d3d 100644
--- a/src/App/Resources/AppResources.Designer.cs
+++ b/src/App/Resources/AppResources.Designer.cs
@@ -2047,6 +2047,15 @@ namespace Bit.App.Resources {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized string similar to DuckDuckGo.
+        /// </summary>
+        public static string DuckDuckGo {
+            get {
+                return ResourceManager.GetString("DuckDuckGo", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized string similar to Edit.
         /// </summary>
@@ -2542,6 +2551,15 @@ namespace Bit.App.Resources {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized string similar to Fastmail.
+        /// </summary>
+        public static string Fastmail {
+            get {
+                return ResourceManager.GetString("Fastmail", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized string similar to Favorite.
         /// </summary>
diff --git a/src/App/Resources/AppResources.resx b/src/App/Resources/AppResources.resx
index f260e86c3..87e04009e 100644
--- a/src/App/Resources/AppResources.resx
+++ b/src/App/Resources/AppResources.resx
@@ -2423,6 +2423,14 @@ select Add TOTP to store the key safely</value>
     <value>SimpleLogin</value>
     <comment>"SimpleLogin" is the product name and should not be translated.</comment>
   </data>
+  <data name="DuckDuckGo" xml:space="preserve">
+    <value>DuckDuckGo</value>
+    <comment>"DuckDuckGo" is the product name and should not be translated.</comment>
+  </data>
+  <data name="Fastmail" xml:space="preserve">
+    <value>Fastmail</value>
+    <comment>"Fastmail" is the product name and should not be translated.</comment>
+  </data>
   <data name="APIAccessToken" xml:space="preserve">
     <value>API access token</value>
   </data>
diff --git a/src/App/Utilities/IconGlyphExtensions.cs b/src/App/Utilities/IconGlyphExtensions.cs
index a55ce1b2a..d7c6c35ac 100644
--- a/src/App/Utilities/IconGlyphExtensions.cs
+++ b/src/App/Utilities/IconGlyphExtensions.cs
@@ -54,7 +54,7 @@ namespace Bit.App.Utilities
                 case BooleanGlyphType.Checkbox:
                     return value ? BitwardenIcons.CheckSquare : BitwardenIcons.Square;
                 case BooleanGlyphType.Eye:
-                    return value ? BitwardenIcons.Eye : BitwardenIcons.EyeSlash;
+                    return value ? BitwardenIcons.EyeSlash : BitwardenIcons.Eye;
                 default:
                     return "";
             }
diff --git a/src/Core/Enums/ForwardedEmailServiceType.cs b/src/Core/Enums/ForwardedEmailServiceType.cs
index fcd1ec0dc..71bb25048 100644
--- a/src/Core/Enums/ForwardedEmailServiceType.cs
+++ b/src/Core/Enums/ForwardedEmailServiceType.cs
@@ -4,11 +4,16 @@ namespace Bit.Core.Enums
 {
     public enum ForwardedEmailServiceType
     {
+        None = -1,
         [LocalizableEnum("AnonAddy")]
         AnonAddy = 0,
         [LocalizableEnum("FirefoxRelay")]
         FirefoxRelay = 1,
         [LocalizableEnum("SimpleLogin")]
         SimpleLogin = 2,
+        [LocalizableEnum("DuckDuckGo")]
+        DuckDuckGo = 3,
+        [LocalizableEnum("Fastmail")]
+        Fastmail = 4,
     }
 }
diff --git a/src/Core/Models/Domain/UsernameGenerationOptions.cs b/src/Core/Models/Domain/UsernameGenerationOptions.cs
index ab20988d5..44c48a6f3 100644
--- a/src/Core/Models/Domain/UsernameGenerationOptions.cs
+++ b/src/Core/Models/Domain/UsernameGenerationOptions.cs
@@ -4,7 +4,10 @@ namespace Bit.Core.Models.Domain
 {
     public class UsernameGenerationOptions
     {
-        public UsernameGenerationOptions() { }
+        public UsernameGenerationOptions()
+        {
+            ServiceType = ForwardedEmailServiceType.None;
+        }
 
         public UsernameType Type { get; set; }
         public ForwardedEmailServiceType ServiceType { get; set; }
@@ -16,6 +19,8 @@ namespace Bit.Core.Models.Domain
         public string CatchAllEmailDomain { get; set; }
         public string FirefoxRelayApiAccessToken { get; set; }
         public string SimpleLoginApiKey { get; set; }
+        public string DuckDuckGoApiKey { get; set; }
+        public string FastMailApiKey { get; set; }
         public string AnonAddyApiAccessToken { get; set; }
         public string AnonAddyDomainName { get; set; }
         public string EmailWebsite { get; set; }
diff --git a/src/Core/Services/ApiService.cs b/src/Core/Services/ApiService.cs
index e4c0db826..674960c78 100644
--- a/src/Core/Services/ApiService.cs
+++ b/src/Core/Services/ApiService.cs
@@ -760,6 +760,14 @@ namespace Bit.Core.Services
                     case ForwardedEmailServiceType.SimpleLogin:
                         requestMessage.Headers.Add("Authentication", config.ApiToken);
                         break;
+                    case ForwardedEmailServiceType.DuckDuckGo:
+                        requestMessage.Headers.Add("Authorization", $"Bearer {config.ApiToken}");
+                        break;
+                    case ForwardedEmailServiceType.Fastmail:
+                        requestMessage.Headers.Add("Authorization", $"Bearer {config.ApiToken}");
+                        requestMessage.Content = new StringContent(await CreateFastmailRequest(config.ApiToken),
+                            Encoding.UTF8, "application/json");
+                        break;
                 }
 
                 HttpResponseMessage response;
@@ -790,12 +798,99 @@ namespace Bit.Core.Services
                         return result["full_address"]?.ToString();
                     case ForwardedEmailServiceType.SimpleLogin:
                         return result["alias"]?.ToString();
+                    case ForwardedEmailServiceType.DuckDuckGo:
+                        return $"{result["address"]?.ToString()}@duck.com";
+                    case ForwardedEmailServiceType.Fastmail:
+                        return HandleFastMailResponse(result);
                     default:
                         return string.Empty;
                 }
             }
         }
 
+        private string HandleFastMailResponse(JObject result)
+        {
+            if (result["methodResponses"] == null || !result["methodResponses"].HasValues ||
+                !result["methodResponses"][0].HasValues)
+            {
+                throw new Exception("Fastmail error: could not parse response.");
+            }
+            if (result["methodResponses"][0][0].ToString() == "MaskedEmail/set")
+            {
+                if (result["methodResponses"][0][1]?["created"]?["new-masked-email"] != null)
+                {
+                    return result["methodResponses"][0][1]?["created"]?["new-masked-email"]?["email"].ToString();
+                }
+                if (result["methodResponses"][0][1]?["notCreated"]?["new-masked-email"] != null)
+                {
+                    throw new Exception("Fastmail error: " +
+                                        result["methodResponses"][0][1]?["created"]?["new-masked-email"]?["description"].ToString());
+                }
+            }
+            else if (result["methodResponses"][0][0].ToString() == "error")
+            {
+                throw new Exception("Fastmail error: " + result["methodResponses"][0][1]?["description"].ToString());
+            }
+            throw new Exception("Fastmail error: could not parse response.");
+        }
+
+        private async Task<string> CreateFastmailRequest(string apiKey)
+        {
+            using (var httpclient = new HttpClient())
+            {
+                HttpResponseMessage response;
+                try
+                {
+                    httpclient.DefaultRequestHeaders.Add("Authorization", $"Bearer {apiKey}");
+                    httpclient.DefaultRequestHeaders.Add("Accept", "application/json");
+                    response = await httpclient.GetAsync(new Uri("https://api.fastmail.com/jmap/session"));
+                }
+                catch (Exception e)
+                {
+                    throw new ApiException(HandleWebError(e));
+                }
+                if (!response.IsSuccessStatusCode)
+                {
+                    throw new ApiException(new ErrorResponse
+                    {
+                        StatusCode = response.StatusCode,
+                        Message = $"Fastmail error: {(int)response.StatusCode} {response.ReasonPhrase}."
+                    });
+                }
+                var result = JObject.Parse(await response.Content.ReadAsStringAsync());
+                var accountId = result["primaryAccounts"]?["https://www.fastmail.com/dev/maskedemail"]?.ToString();
+                var requestJObj = new JObject
+                {
+                    new JProperty("using",
+                        new JArray { "https://www.fastmail.com/dev/maskedemail", "urn:ietf:params:jmap:core" }),
+                    new JProperty("methodCalls",
+                        new JArray
+                        {
+                            new JArray
+                            {
+                                "MaskedEmail/set",
+                                new JObject
+                                {
+                                    ["accountId"] = accountId,
+                                    ["create"] = new JObject
+                                    {
+                                        ["new-masked-email"] = new JObject
+                                        {
+                                            ["state"] = "enabled",
+                                            ["description"] = "",
+                                            ["url"] = "",
+                                            ["emailPrefix"] = ""
+                                        }
+                                    }
+                                },
+                                "0"
+                            }
+                        })
+                };
+                return requestJObj.ToString();
+            }
+        }
+
         private ErrorResponse HandleWebError(Exception e)
         {
             return new ErrorResponse
diff --git a/src/Core/Services/UsernameGenerationService.cs b/src/Core/Services/UsernameGenerationService.cs
index b93262aa2..a2f70224a 100644
--- a/src/Core/Services/UsernameGenerationService.cs
+++ b/src/Core/Services/UsernameGenerationService.cs
@@ -171,6 +171,29 @@ namespace Bit.Core.Services
                             ApiToken = options.SimpleLoginApiKey,
                             Url = "https://app.simplelogin.io/api/alias/random/new"
                         });
+                case ForwardedEmailServiceType.DuckDuckGo:
+                    if (string.IsNullOrWhiteSpace(options.DuckDuckGoApiKey))
+                    {
+                        return Constants.DefaultUsernameGenerated;
+                    }
+                    return await _apiService.GetUsernameFromAsync(ForwardedEmailServiceType.DuckDuckGo,
+                        new UsernameGeneratorConfig()
+                        {
+                            ApiToken = options.DuckDuckGoApiKey,
+                            Url = "https://quack.duckduckgo.com/api/email/addresses"
+                        });
+                case ForwardedEmailServiceType.Fastmail:
+                    if (string.IsNullOrWhiteSpace(options.FastMailApiKey))
+                    {
+                        return Constants.DefaultUsernameGenerated;
+                    }
+
+                    return await _apiService.GetUsernameFromAsync(ForwardedEmailServiceType.Fastmail,
+                        new UsernameGeneratorConfig()
+                        {
+                            ApiToken = options.FastMailApiKey,
+                            Url = "https://api.fastmail.com/jmap/api/"
+                        });
                 default:
                     _logger.Value.Error($"Error UsernameGenerationService: ForwardedEmailServiceType {options.ServiceType} not implemented.");
                     return Constants.DefaultUsernameGenerated;