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ErrorInCOMDLL: Host property must be assigned when trying to send a test email

Article ID
errorincomdll-host-property-must-be-assigned-when-trying-to-send-a-test-email
Article Name
ErrorInCOMDLL: Host property must be assigned when trying to send a test email
Created Date
15th November 2019
Product
Problem
When trying to send a test e-mail, in the result of test it says 'ErrorInCOMDLL: Host property must be assigned'.
Resolution
ErrorInCOMDLL: Host property must be assigned

Please follow the instructions below to fix this issue:

  • Right click on the IRIS accountancy shortcut on the desktop and select “open file location” (or find the IRIS folder on the server)
  • Open the folder that says ‘Database0’
  • Open the file called ‘tt.ini’ (configuration settings)
  • Under the heading of [Switches], delete the line; UseLegacyEmailLibs = Yes
  • Click File | Save and then close.

Re-start IRIS and try the test again.

If you receive another error “Microsoft Office Outlook: either there is no default mail client or the current mail client cannot fulfill the messaging request. Please run Microsoft Outlook and set it as the default mail client” – Click HERE to rectify it

If this returns a different error that relates to MAPIInitialize failed, then click HERE to rectify it

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