Summary
Description
When you try to send emails from your software using Outlook, you can see the error:
'Unable to send all emails. Error with the address. Unknown Error. Check Windows event Log for more details.'
Resolution
Check Microsoft Office compatibility
First, ensure your version of Microsoft Office is compatible with your Sage software. If you use an incompatible version, your software will fail to send emails.
- In Sage 50 Accounts, go to Help then About.
- In the Program Details section, check the version number.
- Open Microsoft Outlook and go to File.
- Select Office Account then About Outlook.
To find out if your software is compatible, check the compatibility with Microsoft Office.
Using Sage 50 Accounts v28 or above with Outlook 2016 and above
You need to follow different steps first.
Follow our ERROR: 'Unable to send all emails. Error with the address xxx: Unknown...' article.
Check error message in Windows Event Log
To see the specific error, check the Event viewer:
- Type Event viewer in the search box on your taskbar.
- Click the Event Viewer app, then maximise the window of the app.
- Click Windows Logs in the list to the left, then select Application.
- Check the section headed Application for any errors where the Source is Sage Report Designer.
- Select an error to view its details in the General tab below.
Resolve the error
There are different errors that can appear in the event viewer. Check your error for the text below, then click the relevant option to find out your next steps.
- 'Error sending email using Outlook...Path does not exist. Verify the path is correct ...'
- 'Failed to send the message using Outlook provider. Please ensure that Microsoft Outlook is installed, or select a different mail provider...'
- ERROR: 'Microsoft.Office.Interop.Outlook.Application' ... Library not registered...'
- ERROR: 'The SMTP server requires a secure connection or the client was not authenticated...'
- ERROR: 'An error occurred while attempting to establish an SSL or TLS ...'
- ERROR: 'Unable to cast COM object of type... Interface not registered ...'
- ERROR: 'System.InvalidOperationException: A recipient must be specified...'
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