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All DocumentationOffice Add-insOffice Add-ins docs All DocumentationOffice Add-insOffice Add-ins API Reference All DocumentationSharePointSharePoint Framework Filter by Product Word Excel Outlook OneNote PowerPoint Project Access Visio Preview V1.5 V1.4 V1.3 V1.2 V1.1 Manifest AppDomain AppDomains DefaultLocale DefaultSettings Description DesktopSettings DisableEntityHighlighting DisplayName Form FormSettings HighResolutionIconUrl Host Hosts IconUrl Id OfficeApp Override Permissions PhoneSettings ProviderName Requirements Rule Set Sets SourceLocation SupportUrl TabletSettings Version VersionOverrides Action Control CustomTab Event ExtensionPoint DesktopFormFactor FunctionFile Group Hosts Icon MobileFormFactor OfficeTab Resources Scopes SuperTip WebApplicationInfo Outlook Understanding API requirement sets Requirement Set 1.5 Object Models Office Office.context Office.context.mailbox.diagnostics Office.context.mailbox Office.context.mailbox.item Office.context.mailbox.userProfile Complex Types Body CustomProperties Event Location NotificationMessages Recipients RoamingSettings Subject Time Simple Types Enumerations Shared API JavaScript API for Office What's changed in the JavaScript API for Office Office common requirement sets Dialog API requirement sets Identity API requirement sets Add-in command requirement sets JavaScript API for Office error codes Enumerations AsyncResultStatus enumeration CoercionType enumeration AsyncResult AsyncResult.asyncContext AsyncResult.error AsyncResult.status AsyncResult.value Context office.context office.context.displaylanguage office.context.officetheme office.context.mailbox office.context.roamingsettings Error error.code error.message error.name Office cast.item initialize event event.completed event.source.id Office UI Dialog object closeContainer method displayDialog method messageParent method Dialog API requirement sets Open specifications Edit in GitHub FormSettings element Specifies source location and control settings for your mail add-in. Add-in type: Mail Syntax: <FormSettings> ... </FormSettings> Contained in: OfficeApp Can contain: Form