Hello,
We have a Exchange Server 2013 CU11 running and clients run with Outlook 2013.
Sometimes when our users either Accept, Change or Decline a meeting request and use the option to send their answer right away.
then they get a NDR returned saying their mail cannot be delivered because of corrupt message content.
I'm not exactly sure since when this appeared, it feels like its since we run CU11, but im not exactly sure if that really the cause.
I'm hoping you guys have a good suggestion on how to resolve these issues.
Remote Server returned '554 5.6.0 Corrupt message content; STOREDRV.Deliver.Exception:ConversionFailedException.ConversionFailedException.TextConvertersException; Failed to process message due to a permanent exception with message The message content has become corrupted. ConversionFailedException: Content conversion: Body conversion failed. [Stage: CreateReplay]'