Exchange 2013 and Outlook 2016 error

[kkiedrowski]

The CEO is trying to send an email internally. He has Outlook 2016 and is attaching other email messages to the email he is creating. He receives a NDR:
Remote Server returned '554 5.6.0 Corrupt message content; STOREDRV.Deliver.Exception:ConversionFailedException.ConversionFailedException; Failed to process message due to a permanent exception with message The message content has become corrupted. ConversionFailedException: The content conversion limit has been exceeded. [Stage: CreateReplay]'

We have disabled AV, Tried sending as plain text, sent only half the attachments, made sure there are no sending limits on his account.

The great wise googlemachine is not turning up much to help me and I am a bit stuck now.

Thoughts and advice please.

 

[RobertWinther]

Here are files and instructions which will help replicate the issue.

I attached sample project to create Exchange routing agent for Exchange 2010 SP1.

Follow these steps to replicate:
Examine project if needed.
Copy appropriate content to "Aspose.Total.lic" (see project).
Recompile.
Copy entire content from "Release" folder to the "c:\TestAgent" folder on Exchange 2010 SP1 server you used for testing.
Open Exchange Power Shell console.
execute command "cd c:\TestAgent"
execute command ".\install.ps1" in order to register agent
Open Outlook.
Create new message; specify subject; attach image and save it (will be saved to Drafts folder).
Create another message.
Click "Attach Item" > "Outlook Item"
Choose previously saved message from Drafts folder.
Add recipient (the same as sender).
Click "Send".
When message reaches Exchange, log is created in "c:\TestAgent\Logs". You must not see errors there.

In few seconds sender receives NDR.

To uninstall test agent:
Open Exchnage PowerShell console.
execute command "cd c:\TestAgent"
execute command "cd .\uninstall.ps1"
If you still not able to replicate, please check if TNEF is used on your server. You can see it in the created log file:
Message from: Administrator@qa2010.lab. TNEF part: Not NULL.

Original thread here

http://www.aspose.com/community/forums/permalink/620782/596490/showthread.aspx#596490