Hi there, I am having similar issues, but even more interesting because it’s selective:
Only some of the mails are getting the issue of Move Outlook mail Message: The operation failed, others are working fine - can it be that it’s something with the particular mail? Like a name, or attachment, or size of that email? I must say that there is some rule for that, cause they are for example: emails from the same vendor, or emails about the same property, that are not getting processed.
Unfortunately I cannot increase the Timeout for Move Outlook Mail cause there is no such property for that activity.
Anyone can help please?