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+---- Thread: Are there any free working mail access checkers? (/showthread.php?tid=6301295)
Are there any free working mail access checkers? - xreD - Jun 24, 2025
Hello,
I tried this tool called "Email Appender (v1.0.2)" but its showing me following error.
![[Image: image.png]](https://i.ibb.co/m591r9CL/image.png)
Code
Version: 1.0.2.0
Information of System.NotSupportedException:
- Message: This type of CollectionView does not support changes to its SourceCollection from a thread different from the Dispatcher thread.
- Source: PresentationFramework
- StackTrace:
at System.Windows.Data.CollectionView.OnCollectionChanged(Object sender, NotifyCollectionChangedEventArgs args)
at EmailAppender.Models.ConcurrentObservableDictionary`2.<>c__DisplayClass9_0.<NotifyObserversOfChange>b__0(Object s)
at System.Threading.QueueUserWorkItemCallback.WaitCallback_Context(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem()
at System.Threading.ThreadPoolWorkQueue.Dispatch()
at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback()
==========All I want to do is check which mailbox are working and then use them as smtp to send bulk emails.
Are there any tools that are free that can do this?
Thanks
RE: Are there any free working mail access checkers? - patchdev - Sep 4, 2025
there are many bro GHOST AIO for example but you need cracked versions