Fixing outlook email separators

This tip is designed to help you if you are using the email multiple clients/staff/contact feature available from on the list screens of SupportAbility, and are receiving the following Microsoft Outlook error message:

This problem is caused by Microsoft Outlook not complying with the international standard for separating email addresses.

To fix the issue and force Outlook to be compliant:

  1. Open Microsoft Outlook
  2. Go to Tools > Options
  3. In the Preferences tab, click Email Options
  4. Click Advanced Email Options
  5. In the bottom section ("When sending a message"), check the box next to "Allow comma as address separator"


If you wanted to view the technical details around the issue, you can refer to the 'mailto' URI Scheme specification (RFC 6068 - ) which clearly states that commas are the correct mail address delimiter as semi-colons are a reserved character in the specification used for a different purpose.

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