public sealed class UnconditionalTrigger : IMessage<UnconditionalTrigger>, IEquatable<UnconditionalTrigger>, IDeepCloneable<UnconditionalTrigger>, IBufferMessage, IMessage
Reference documentation and code samples for the Google.Apps.Script.Type class UnconditionalTrigger.
A trigger that fires when any email message is opened.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07 UTC."],[[["\u003cp\u003eThe latest version of the \u003ccode\u003eUnconditionalTrigger\u003c/code\u003e class is 2.3.0, found within the \u003ccode\u003eGoogle.Apps.Script.Type\u003c/code\u003e namespace.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eUnconditionalTrigger\u003c/code\u003e is a class that fires a trigger when any email message is opened.\u003c/p\u003e\n"],["\u003cp\u003eThis class implements the \u003ccode\u003eIMessage\u003c/code\u003e, \u003ccode\u003eIEquatable\u003c/code\u003e, \u003ccode\u003eIDeepCloneable\u003c/code\u003e, and \u003ccode\u003eIBufferMessage\u003c/code\u003e interfaces and inherits from \u003ccode\u003eobject\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThere are currently 6 versions of \u003ccode\u003eUnconditionalTrigger\u003c/code\u003e available, starting from version 1.0.0 and going up to the latest version 2.3.0.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eUnconditionalTrigger\u003c/code\u003e class provides two constructors, one default and another which accepts an existing \u003ccode\u003eUnconditionalTrigger\u003c/code\u003e object as a parameter.\u003c/p\u003e\n"]]],[],null,["# Google.Apps.Script.Type - Class UnconditionalTrigger (2.3.0)\n\nVersion latestkeyboard_arrow_down\n\n- [2.3.0 (latest)](/dotnet/docs/reference/Google.Apps.Script.Type/latest/Google.Apps.Script.Type.Gmail.UnconditionalTrigger)\n- [2.2.0](/dotnet/docs/reference/Google.Apps.Script.Type/2.2.0/Google.Apps.Script.Type.Gmail.UnconditionalTrigger)\n- [2.1.0](/dotnet/docs/reference/Google.Apps.Script.Type/2.1.0/Google.Apps.Script.Type.Gmail.UnconditionalTrigger)\n- [2.0.0](/dotnet/docs/reference/Google.Apps.Script.Type/2.0.0/Google.Apps.Script.Type.Gmail.UnconditionalTrigger)\n- [1.1.0](/dotnet/docs/reference/Google.Apps.Script.Type/1.1.0/Google.Apps.Script.Type.Gmail.UnconditionalTrigger)\n- [1.0.0](/dotnet/docs/reference/Google.Apps.Script.Type/1.0.0/Google.Apps.Script.Type.Gmail.UnconditionalTrigger) \n\n public sealed class UnconditionalTrigger : IMessage\u003cUnconditionalTrigger\u003e, IEquatable\u003cUnconditionalTrigger\u003e, IDeepCloneable\u003cUnconditionalTrigger\u003e, IBufferMessage, IMessage\n\nReference documentation and code samples for the Google.Apps.Script.Type class UnconditionalTrigger.\n\nA trigger that fires when any email message is opened. \n\nInheritance\n-----------\n\n[object](https://learn.microsoft.com/dotnet/api/system.object) \\\u003e UnconditionalTrigger \n\nImplements\n----------\n\n[IMessage](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IMessage-1.html)[UnconditionalTrigger](/dotnet/docs/reference/Google.Apps.Script.Type/latest/Google.Apps.Script.Type.Gmail.UnconditionalTrigger), [IEquatable](https://learn.microsoft.com/dotnet/api/system.iequatable-1)[UnconditionalTrigger](/dotnet/docs/reference/Google.Apps.Script.Type/latest/Google.Apps.Script.Type.Gmail.UnconditionalTrigger), [IDeepCloneable](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IDeepCloneable-1.html)[UnconditionalTrigger](/dotnet/docs/reference/Google.Apps.Script.Type/latest/Google.Apps.Script.Type.Gmail.UnconditionalTrigger), [IBufferMessage](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IBufferMessage.html), [IMessage](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IMessage.html) \n\nInherited Members\n-----------------\n\n[object.GetHashCode()](https://learn.microsoft.com/dotnet/api/system.object.gethashcode) \n[object.GetType()](https://learn.microsoft.com/dotnet/api/system.object.gettype) \n[object.ToString()](https://learn.microsoft.com/dotnet/api/system.object.tostring)\n\nNamespace\n---------\n\n[Google.Apps.Script.Type.Gmail](/dotnet/docs/reference/Google.Apps.Script.Type/latest/Google.Apps.Script.Type.Gmail)\n\nAssembly\n--------\n\nGoogle.Apps.Script.Type.dll\n\nConstructors\n------------\n\n### UnconditionalTrigger()\n\n public UnconditionalTrigger()\n\n### UnconditionalTrigger(UnconditionalTrigger)\n\n public UnconditionalTrigger(UnconditionalTrigger other)"]]