Microsoft OutlookI’ve been using for email for a few years now and have had very few errors, but the other day, I encountered a problem whereby I was unable to send any emails:

Error message popup
Couldn't send the following message

The draft email window also showed an error

Error message on draft email
The message can't be sent at the moment. Please try again later. An internal server error occurred. The operation failed.

I did some poking around and couldn’t find any causes, and couldn’t find anything online either.

I remembered I connected desktop Outlook to this email account a while ago, so I launched it and tried to send an email:

Desktop Outlook showing error trying to send an email
Task 'xxxx - Sending' reported error (0x8004060C) : 'The
message store has reached its maximum size. To reduce the amount of data in
this message store, select some items that you no longer need, and permanently
(SHIFT + DEL) delete them.'

This error is a lot more explicit and useful; it actually tells you what the problem is. I clicked the File tab to check sizes:

Outlook Info - Account Information

Armed with this additional information, I was able to go through my old emails and delete a couple hundred thousand freeing up half the space.

Two items in this issue have left me distinctly unimpressed:

  1. The error messages from are totally useless; there is no hint as to possible causes of the problem.
  2. I logged an issue with the support team clearly stating I was unable to send any email; their response was to email me asking for me to reply by email with more details.

Read original post Error Sending Emails at azurecurve|Ramblings of a Dynamics GP Consultant; post written by Ian Grieve (Lead ERP Consultant at ISC Software Solutions)

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