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Re: Remote SMTP Server Returned: 500 Invalid request

 

On Wed, Dec 20, 2017 at 11:26 pm, Simon Brown wrote:

I'm getting 'Remote SMTP Server Returned: 500 Invalid request' replies once
a day or so. Using Outlook 2016.
Reason: Remote SMTP Server Returned: 500 Invalid request
It's incomplete error message. Your Outlook hides detailed message from you.
That's Microsoft's "friendliness" for you.

One of several possible reasons is an attempt to approve a message already approved by another moderator a short time ago.
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